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Stack Training System - 2023 Forum Member Review

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Testing Tracker Update:  Foundations Complete



Follow Testers main posts and progress via the links below!

@hckymeyer - Testing Post

@twyatt700 - Testing Post

@GregGarner - Testing Post

@DaveP043 - Testing Post

 @Derek Lusk - Testing Post

@tdroma98Testing Post



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Greeting MGS!  My name is Brian Meyer and I am very excited to be reviewing The Stack System for you guys.  Like the other guys we don't have much for pictures to post yet, so instead you'll be getting a little golf and some family pics thrown in along the way.  Here's a quick family shot from this summer.


A little background on me now. I've been around this forum for almost 13 years in various roles.  Member, Forum Mod, Forum Director and for the past few years happily back to forum member.  I'm 44 years old and live in Minnesnowta but originally from Wisconsin.  I started golfing in the backyard with my dad's old persimmon clubs when I was probably 5 or 6.  Did the local junior camp in the summer in elementary school.  Played quite a bit in Jr High when I got a membership at the local muni.  I played in high school on the JV team just as something to do in the hockey off season, then hockey took over my life through college and didn't play a ton.  After graduation I played a couple times a month in the summer but for the past 10 years I've lived on a golf course and get out as much as I can.  Here's my youngest son (age 9) acting silly on the range and my oldest (age 12) doing Drive, Chip & Putt this year.  He got 1st in the putting stage at the local qualifier but no where near moving on to the next one.


The past 2-3 seasons have been pretty good for my golf game.  I'm currently sitting at a 2.5 index and I've been anywhere from a 1 - 3.5 for the past couple years.  I'm not really long, but can still get it out there 260-270 when I'm swinging well.  My strength is iron play, weakness is chipping and putting is very streaky.  I'll go days making 100'+ of putts in a round and then days when I struggle to make 20' of putts in a round and I'll miss a couple 3 footers.  


(Event called The British at my home course)

I'm very excited about testing out The Stack System.  I've been very serious about getting in better shape over the past 2 years.  My wife and I got a Peloton bike and I'm bought in to the workouts.  I love doing the rides and also the strength and yoga exercises.  I don't think all the workouts have really added much length to my game though.  I'm very hopefully that The Stack can really up my distance.  I'd absolutely love to start off next season with an extra 10-20 yards off the tee!  I'm hopeful that we have another 1.5-2 months left in the golf season here, so I'm also very curious if my accuracy changes at all while working with The Stack.  

That's about it for now, feel free to drop me any questions you have as we get going!

Last pic ... Wife and I went to Italy this spring


First Impressions

Since this is a training aid and not a club review my first impressions are going to be a little different.  I'm not going to do a traditional unboxing (it came packed well in a shaft tube) and there won't be a bunch of product pictures, but I will add those in the review.  

My first impressions of the hardware were very positive though.  You get a nice carrying case with 5 milled weights that seem very high end.  The club looks nice, grip is grippy and everything is very easy and intuitive to use.

The software app is fantastic, again pretty intuitive, lots of instructional video's and very user friendly.  I'll save the main walk through for the actual review.

In no particular order here is a list of my first impressions of The Stack and my journey in to speed training.

  • Do the warm up!!!  This is probably the single most important thing to getting good results
  • The workouts are quick, but also take a big chunk of time.  Once you factor in a proper warm up it's at least 35-45 minutes from start to finish for me to do a session. If I want to do a regular gym workout too then it's easily an hour plus
  • Use proper swing mechanics, I went all out on some of the max swing sessions and my lower back was hurting for a day or two.  I may have went overboard
  • It does a great job of teaching you what fast feels like.  Sometimes I'd swing out of my shoes and get slower numbers, then swing smooth and gain 5mph over the previous swing
  • Just like good and bad days on the course, you will have faster and slower days speed training.  It's not a linear journey
  • Hitting person records is addictive 🙂

That's all I can think of for now.  It's been a very fun first few weeks getting going and I'm very excited to keep going in the journey to hitting bombs!

Edited by hckymeyer

Driver: :taylormade-small: SLDR w/ Fujikura Ventus Black

3w: :taylormade-small:'16 M2 hl w/ Diamana D+ 82

5w: :cleveland-small: Launcher HB w/ HZRDUS Yellow

Hybrid: :cleveland-small: 22 deg. Launcher HB w/ HZRDUS Black

Irons: :cleveland-small: 5i - gap Launcher CBX w/ Nippon Modus 3 125

Wedges: :cleveland-small: 54 CBX & 58 Zipcore w/ Nippon Modus 3 125

Putter: :odyssey-small: Red 7s

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Once again, I’m back with a review, one of the lucky few selected to review the Stack System, my thanks go to Stack for providing the equipment and guidance, and to the MGS folks for selecting me. I don't really have photos to go with this into, so to keep everyone interested I'll drop in a couple from my summer's trip to Scotland.  First is the Postage Stamp at Royal Troon


An introduction to me, I'm a 67-year old Geotechnical Engineer, living in the Washington DC suburbs. I’m easing into retirement, working only two days a week in the office, playing a bit more golf. I’m also becoming active as a Rules Official, volunteering with both the VSGA and the MAPGA.

I've been playing golf since I was a teenager, so I have something over 50 years of experience. I was largely a hacker, maybe a 15-handicap at best until I joined the club in the early 90s. Since then, with the help of a couple of lessons, a good bit of practice, and lots of play, I've become much better, currently a 7 handicap. I love to play and love even more to compete. Lucky for me, my wife is the same.

A quick equipment summary: I replaced my driver over the winter of 2018/2019. Through a fitting session at Mid South in Pinehurst, I ended up with a Callaway Rogue SubZero with Graphite Design YS-Six shaft. Irons are Titleist T200 (reviewed for MGS), with Mizuno wedges. Last Spring I added a Sub70 5-wood (see my review) and a Mizuno 7-wood. Putter is an old Ping G5i (with the blue inserts) B-60.

The lighthouse and 9th hole (to the right) at Turnberry


As I mentioned, I'm a single-digit handicap, current with a 5.6 index. I generally keep the ball in play, hit a fair number of greens. Long irons are decent, short irons are generally good, short game and putting have been pretty solid recently.

So why did I apply for this review? I'm getting older, as all of us do. And as many of us do, I've lost distance, especially over the past few years. When I got fitted for my driver my clubhead speed was in the high 90s, and I was carrying the ball between 230 and 240 yards. I've seen a significant loss of distance in my tee shots, 15 to 20 yards shorter. I wondered if equipment could help, so I attended fitting days with both Taylor Made and Callaway at my club, and found out that for $600 or so I could gain maybe 3 or 4 yards. My clubhead speed was in the low 90s at best. I want to regain that distance!

How will I evaluate the Stack System? The most obvious thing is to evaluate my play, will I increase distance? But there are a lot of pieces to this overall puzzle As part of this Review, we'll be provided with a PRGR launch monitor, so there will be a mini-review of it. There's build quality of the Stack System equipment, ease of use, difficulty of changing weights, etc. A hugely important part of this is the upload, analysis, and feedback from Stack, structuring each new session based on results from previous sessions. So how well does the interface work, clarity of instructions, etc. There will be numbers, swing speeds obtained through the PRGR, estimated carry distances, so speed gains will be quantified. But from the top of this paragraph, the most important measure will be on the courses, do I gain (or regain) distance?

And last, the view from Russacks Hotel in St Andrews


Edited by DaveP043

:titleist-small: Irons Titleist T200, AMT Red stiff

:callaway-small:Rogue SubZero, GD YS-Six X

:mizuno-small: T22 54 and 58 wedges

:mizuno-small: 7-wood

:Sub70: 5-wood

 B60 G5i putter

Right handed

Reston, Virginia

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Hello Spies!!  My name is Derek Lusk. I am in my late 40's and have been playing golf for 25 years. I live in Flagstaff Arizona about 3 hours north of Phoenix with an elevation 7000 feet.  I am a mechanic for the city of Flagstaff.  I grew up in Mesa AZ (Phoenix area) and in 2021 moved north to Flagstaff with my wife and two dogs.  My wife and I took 2022 off of work to travel.  We spent time exploring the United States as well as England and Scotland.  



Spending a few days at St. Andrews was amazing!!!  While I didn't play the course, we were able to walk around the grounds and from our room we had a perfect view of the 17th fairway.  We plan on returning to Scotland in 2025 to play some courses and hopefully at St. Andrews.  While researching how to get on at St. Andrews, I became aware that a handicap under 36 was required.  This made me become a more serious golfer and now have a handicap of 10.4.  Besides traveling during 2022, I played the most golf of my life.  It is amazing how much golf you can get in when not working.  Can't wait for retirement!!

I play at Elephant Rocks Golf Course in Williams Arizona, about a 30 minute drive from my house.  I am fortunate that my brother in law loves the game as much as I do and is able to be my full time golfing partner.  




I am so excited to be chosen for testing the Stack Training System.  I also heard about the system on the Chasing Scratch Podcast and immediately wanted to try it out. My brother in law who is also a spy,  and I have been looking into purchasing the Stack when I was chosen to be a tester.   

I last had my swing speed tested two years ago when I as fitted for my driver at a PKG store.  It was between 98 and 100 mph.  My goal with this system is to increase my swing speed and ultimately add 10 to 20 yards off the tee.  I plan on recording my swing speed at the beginning  of the testing process (I will create a chart that I will share in my weekly posts) with my swing speed at the end of the testing period.  I will know that this product is successful and will use it as part of my conditioning routine as I continue to progress towards my goals.  

My knowledge of the Stack Trainign System prior to being chosen as a tester is limited.  I have researched it online and on blogs and from what I learned on the Chasing Scratch Podcast.  I read that Matt Fitzpatrick increased their swing speed with the use of this product.

I can't wait to start!!!!! 


Edited by Derek Lusk

Derek Lusk

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Hello Spies! My name is Tom and from Orlando, FL.  Originally born & raised in Long Island, NY & a brief residence in North Central Massachusetts. The New England Winters convinced me to move south for college!  Soon to be married to the same Beautiful Lady for 42 yrs. This will be my second opportunity for testing and I'm really excited!! 

I'd like to thank MGS Staff & the Stack System Team for the Opportunity to test the Stack Training!  Talk about putting pep back in your golf step, after being selected. I've been playing golf now for 50yrs, taking up the game at age 13 (you do the math LOL) and I love the game! I love the challenges and while frustrated at times, I enjoy the learning aspect of the game. 

Last August 2022, I decided to make a change, first after a poor performance in qualifying for the Florida Senior Open & then after seeing my swing on video, which absolutely convinced me to make a swing change.  Biomechanics had sparked my interest the few years ago, followed by Swing Speed aides and this year seeing the success both Padraig Harrington & Matt Fitzpatrick have had training with "Speed" Training & Matt Fitzpatrick using this very Stack System is awesome! Think outside the box and not be afraid of change!  What an opportunity this will testing will afford. 

I've never worked with any type of Speed Training system, nor a launch monitor. Although a golf buddy has an app on his phone & my driver swing registers around 105mph.  I want to improve on that, be a better ball striker & gain some distance. Today's technology is amazing! 

The Stack System swing speed training really peaked my interest being with the developer having biomechanics expertise.  Will it help improve my swing speed at age 63?  Will I see an increase in distance? 

Once again, thank you MGS & Stack System Team! I'm looking forward to this test and sharing the results.  Now working at a golf course, part-time, I'll have plenty of opportunity for testing!! ⛳ 

P.S. IT"S HERE! Delivered today by USPS!! Unboxing coming shortly! 

TheStack arrived in two packages, the little box contained the PRGR launch monitor. 



The cylinder package is TheStack Club with TheStack weights.  All items packed very well! 
the unboxing 😃


First impressions of my first Stack Session was interesting! I've been fascinated with BioMechanics in golf. Never really engaged with incorporating it into my game. I think Dr. Sasho MacKenzie, the co-founder, has built  something very interesting, including the regimented workout. 

First thing to get settled in my mind is going into this training with an open mind and following their recommended warm up, prior to using TheStack.  In my opinion, the warm up is great. Have played sports, in my younger days, you would go through a warm up process, including stretching. It gets the body warm, targets the right muscles & movements.  

I've completed two sessions & used Dr. McKenzie's warm up video both times & working up a nice sweat.   The stretching & warm up routines are new (I keep the garage door closed - LOL), I've never had done the types of stretching Dr. McKenzie uses for warm up. 

Mentally, the only issue I've found is being a bit apprehensive swinging in doors.  My set up is in the garage.  Using TheStack club is getting easier to swing indoors and swinging with "full intent". However, swinging the driver indoors, with "full intent" is still a mental challenge.  First air swing with driver, Sparks Flew, LOL! OOps.

The struggle I've had along with swinging inside, concerns the swing speed being registered by the launch monitor.  Previous testings the past two years have registered my driver swing between 102-105mph.  The first speeds registered with the PRGR were between 89 to 94mph.  That was a mental challenge to overcome, disappointed & wondering if I set the monitor up correctly.  However, into my 2nd session, I tried to put those issues aside & work TheStack System.  

The interaction with the TheStack phone app and PRGR monitor is interesting and pretty cool. You make your swing, the PRGR monitor beeps with the number. You repeat the number to the app & a female voice repeats the number & enters to the app.  If you hit a new high, the system cheers & tells you hit a new high. 

I'll say this, after the first session, the following day I was a bit sore.  Legs & hamstrings felt weird.  Last evening was my 2nd session & this morning I felt much better & even hit the range at 7:30am and body was fine. 

  First Impressions: 

Wow! I've never used any type of a "Speed Training System". Coming in as a virgin, absolutely enjoying TheSpeed Sessions.  Sasho's warmup routine is a must.  It's also a routine you can take out to the golf course before you start your round with your buddies. 

I will say, I was a bit disappointed in my initial swing speed numbers, but you have to put that aside and stick to the program with an open mind. As you track your numbers along the way, you do get involved in the training system.  

Last night I did Session 9 and I found myself comparing notes to previous sessions and seeing if I was able to increase average speeds with same weight training. It's great. In addition, I'm noticing if my swing is off - over swinging, swinging over the top, balance. 
Not going to lie, I was excited about being chosen, once I got past the disappointment with initial swing speeds and change the mindset to using TheSwing Speed Training system, you look forward to the challenge! 

TheSwing Speed app is also very good & interactive.  (be careful what you say the app mike does pick up EVERYTHING! 🤣).  

Edited by tdroma98

Titleist T200 Irons - 5i thru Gap Wedge - Stiff AMT Black

Callaway PARADYM X 9.0 with Hazrdous X Black 6.0 Stiff Shaft

Fairway Woods:  Callaway Maverick 3W & RazrX Black 5W - Stiff Flex

Rescue:  Apex 4 (22 degree )- Recoil 75H stiff flex 

Wedges: Titleist SM8 - 54 (D Grind) wedge flex; SM8 58(M grind) wedge flex

Putter: Scotty Cameron Newport 2

Ball: Titleist ProV1

Handicap: 1.0

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Congratulations all.

In the bag:
Driver: :titelist-small: TSR2 Project X HZRDUS Black 5.5
Fairway: :callaway-small: Apex UW 19° & 21° Project X HZRDUS Smoke RDX Black 5.5

Irons: :mizuno-small: JPX 923 HMP 5-PW UST Mamiya Recoil 95 F4
Wedges: :mizuno-small: T-22 Denim Copper 48°, 52° & 56° UST Mamiya Recoil 95 F4
Putter :Sub70: Sycamore 005 Wide Blade
:Ogio: Alpha Convoy 514
Balls: :callaway-small: Chrome Soft X

Cart: :CaddyTek: CaddyLite ONE Ver. 8

God Bless America🇺🇸, God save the King🇬🇧, God defend New Zealand🇳🇿 and thank Christ for Australia🇦🇺!

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Congratulations!!! I’m looking forward to seeing about all the details that comes with the stack. Also, who do we think is going to have the biggest gains? 

:taylormade-small: STEALTH 2+ 10.5* FUJIKURA VENTUS TR BLACK 6X

:srixon-small: ZX MKII 3W 15* Project X HZRDUS Smoke Blue RDX U.S.A. 8TX

:taylormade-small: Stealth 7W 21* FUJIKURA VENTUS TR BLUE 8X

:srixon-small: ZX7 4-P KBS $Taper 130 BLACK PVD

:cleveland-small: RTX 6 Zipcore 50.10/54.10 Full Project X 6.0

:cleveland-small: RTX Zipcore Full Face 60.09 Dynamic Gold TI Spinner

:mizuno-small: M Craft OMOI 01 35”

:maxfli: TOUR X

:Clicgear:  3.5+ Push Cart

:Arccos: Sensors w/ Caddie

 :918457628_PrecisionPro:NX9 with Slope 


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Congratulations to the well chosen testers. We look forward to the results and comments. Specifically, how much it will increase your swing speed and is it sustainable 

Driver: Taylormade Stealth 2 plus, LA golf DJ shaft, 55S

3 wood - TM Stealth plus, Mitsubishi Kai’li. Blue, 5 wood - TM Stealth plus,  Hzrdus red, 3 hybrid Mizuno CLK, Fuji pro 2.0

Irons (5-PW) - Mizuno 921 HMP, Accra IS 80

Wedges, Vokey SM9 48*10F, 54* 12D, 58* 8M, DG S400

Putter: Evnroll tour, stability shaft, Evnroll gravity grip

Bag: Vessel Cobra tour stand bag

Balls: Titleist ProV1x, Callaway Chrome soft X LS, Bridgestone Tour B XS or Srixon Z star Diamond

Tech: Arccos, Bushnell Pro XE rangefinder

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13 minutes ago, DGA3 said:

Not selected again.


Oh well.


It's kind of the feeling I get every year when the Masters tells me I didn't win the ticket lottery.

First guideline we lay out to be selected is no profile photo = no selection. 

I highly recommend reading or even skimming the "how to be a tester" thread. 

I give all the ins and outs of how we make selections and offer advice on how to better your chances at being selected. 

Bottom line is we look for active and engaged members within the community. At the end of the day the reviews are a lot of work (especially this one) and we don't randomly select members, but choose those who have contributed within our community.

⛳🛄 as of Nov 6, 2023 (Past WITB
Driver:  :callaway-small: Paradym TD w/ GD ADDI 6X Driver Shootout! 

Wood:    :cobra-small: F7 3 wood 14.5* w/ Motore F1 Shaft

Irons:   :titleist-small: T Series - T200 5 Iron
                                          T150 6-9 Iron
                                          T100 PW/GW

Wedge:  :mizuno-small: S23 54,58 w/ KBS Tour Hi-Rev Blackout - TBD

Putter:  Screenshot 2023-06-02 13.10.30.png Mezz Max!

Balls:     Vice Pro Plus Drip (Blue/Orange)


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Congrats testers!  Really looking forward to your insights on this one.  Remember, this is more than just speed training.  Stack Putting is a big part of the app; we’ll be looking forward to your feedback on that too!

Driver: :titleist-small: TSR2, :Fuji:Ventus Blue 6 S, 65g Stiff

FW: :titleist-small: TSR2 3w, 15,  :Fuji:Ventus Blue 7 S, 70g Stiff

Hybrids:  :callaway-small: Apex Pro 3H, :Fuji:Ventus Blue 8 S, 80g Stiff

            :taylormade-small: Stealth DHY 4H, :Fuji:Ventus Blue 8 S, 80g Stiff

Irons: :edel-golf-1: SMS 5-6, SMS Pro 7-PW, Aerotech Steelfiber i95 Stiff

Wedges: :vokey-small:SM9 48 F Grind, 52 F Grind, 56 M Grind, Aerotech Steelfiber i95 Stiff

Putter: :odyssey-small: Sri-Hot 5K Triple Wide, Stroke Lab shaft

Ball: :titelist-small: Pro V1

Click here for my HONMA TR20 Official Review!  :honma:

Click here for my Arccos Caddie Bundle Official Review!   :Arccos:

Click here for my Edel SMS & SMS Pro Irons Official Review:edel-golf-1:

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Congrats. to this group of testers, looking forward to their comments and reviews long term to see how this may compare to other similar product concepts.

Driver & Fairway: :titleist-small: Titleist TSR3 10 degree - :Fuji: Ventus TR Blue & :titleist-small: TSR3 15 - :projectx: Project X Hzrdus Smoke Black 

Hybrid: :callaway-small: Callaway Apex UW 19 - :projectx: Hzrdus Smoke Black

Irons: :titleist-small: Titleist T200 3G (4) & T150 - (5-G) - :projectx: Project X LZ 

Wedges: :vokey-small: Vokey SM8 54, and 58

Putter: :cameron-small: Cameron Phantom X 7

Ball: :titleist-small: Pro V1 & :maxfli: Maxfli Tour


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Congratulations to all testers!  Interested to hear about speed gains and if there are any changes to accuracy.

TaylorMade SIM 2 Max Driver

TaylorMade M6 3 wood

Titleist U510 Hybrid

TaylorMade Tour Preferred CB Irons

Vokey SM8 Wedges (52/56/60)

TaylorMade Spider Tour Putter

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Congrats everyone. Interested to see how the reviews compare with the SuperSpeed reviews. 

Driver:  pxg.jpeg.a1ab12ad1fb8e76342a5f1c6828f0433.jpegGen 5, Ventus Blue Shaft - S

4 Wood: image.png.3a7bdc80b43a23d4e08c16f2f319cc28.png.4c7e2187cf1934b0e4eb44ce83a4f9cc.png Rogue ST Max 16.5, Tensei White Shaft - S

Driving Iron: mizunopro.png.90cc4fb9895830e28063d9a5be416145.png Fli High 3-iron, HAZARDOUS Smoke Black Shaft - S

Irons: Mizuno mizuno.png.f0e7b21135cb6273b3c1430866904467.pngJPX 921 Tour 4-P, Project X Shafts - Stiff 125g

Wedges: cleveland.png.f21f4d2361520fdf1bbd9d515a2f11e6.png52º, 56º, 60º

Putter: bettinardi.jpeg.74117d90d92c7ea2613e68cbea531076.jpeg BB1, 34"

Preferred Ball: Srixon Z-Star Diamond

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  • GolfSpy_APH changed the title to Stack Training System - 2023 Forum Member Review

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