Hook DeLoft Posted August 5, 2020 Share Posted August 5, 2020 What are the physical differences that make a urethane covered ball spin more than an ionomer covered ball? Friction? Softness? Coefficient of restitution? Quote 14 of the following: Ping G430 Max 10.5 degree Callaway 2023 Big Bertha 3 wood set to 17 degrees Cobra F9 Speedback 7/8 wood set at 23.5 degrees Callaway Epic Max 11 wood Ping Eye 2 BeCu 2-SW Mizuno 923 JPX HM HL 6-GW Hogan sand wedge 56 degree bent to 53 Maltby M Series+ 54 degree Ping Glide 3.0 Eye2 58 degree Ping Glide 3.0 60 degree Evnroll ER2 Ping Sigma 2 Anser Cheap Top Flite mallet putter from Dick's, currently holding down first place in the bag TaylorMade Mini Spider Bridgestone XS Link to comment Share on other sites More sharing options...
DaveP043 Posted August 5, 2020 Share Posted August 5, 2020 I believe technically it classifies as "magic". Hook DeLoft, silver & black, MattF and 5 others 5 2 1 Quote Irons Titleist T200, AMT Red stiff Rogue SubZero, GD YS-Six X T22 54 and 58 wedges 7-wood 5-wood B60 G5i putter Right handed Reston, Virginia Link to comment Share on other sites More sharing options...
adamflowers Posted August 9, 2020 Share Posted August 9, 2020 My understanding is that the urethane cover is softer, and this allows for more friction on the clubface, i.e. more spin. fozcycle 1 Quote ST 200 9.5°, Mitsubishi Tensei AV Blue 65 S ST 200 3w 15°, Diamana S+ 60 S Z H85 3h 19°, Project X Hzrdus Black Hybrid 6.0 P770 (2017) 4-PW, KBS Tour FLT 120 S SM8 50.08F, 54.14F, 58.08M, KBS Tour S Sigma 2 Fetch 34" Tour B X Link to comment Share on other sites More sharing options...
Middler Posted August 9, 2020 Share Posted August 9, 2020 2 minutes ago, adamflowers said: My understanding is that the urethane cover is softer, and this allows for more friction on the clubface, i.e. more spin. Yep. Quote Urethane covers are softer than surlyn, thus allowing the cover of the golf ball to dig more into the grooves of a wedge. fozcycle 1 Quote Titleist TSR2 11° HZRDUS Red CB 50 6.0 w Lamkin UTx Midsize Titleist TSR2 16.5º HZRDUS Red 60 CB 6.0 & TSR2 21º HZRDUS Black 4G 70 6.0 w Lamkin UTx Midsize Mizuno JPX923 HMP 4-GW, T22 54.12WS, T22 58.04DC w Lamkin ST+2 Hybrid Midsize Evnroll EV5.3 Maxfli Tour & ProV1 Ping Pioneer - MGI Zip Navigator AT Payntr X 002 LE, Ecco Biom C4, Payntr X 001 F (Mesh) Link to comment Share on other sites More sharing options...
DiscipleofPenick Posted August 9, 2020 Share Posted August 9, 2020 SCIENCE!!!!!!!!Take Dead Aim fozcycle and tony@CIC 2 Quote Take Dead Aim Driver: PXG 0211 10.5* Fairway: Titleist 917 F3 15* Hybrid: Adams Idea Pro Boxer Gold 18* Irons: MacGregor MT-86 Pro Wedges: Vokey 50/54/58 Putter: SeeMore X2 Costa del Mar Ball: Srixon Z-Star Link to comment Share on other sites More sharing options...
GregGarner Posted August 9, 2020 Share Posted August 9, 2020 8 hours ago, adamflowers said: My understanding is that the urethane cover is softer, and this allows for more friction on the clubface, i.e. more spin. If I understand correctly, the softer urethane cover by itself adds some spin, but it's more due to the softer cover being on top of a firmer ionomer mantle that really adds the spin. This is why you don't see a 2-piece urethane ball, because it wouldn't have the same ability to "grip" against the core. And why basically all ionomer balls are 2-piece, because the mantle would need to be firmer than the cover. ...I think null, tony@CIC, Kansas King and 2 others 5 Quote Driver: ZX5 LS MkII 9.5* (@ 9.0*) with 46.5" Ventus Blue 6X 3-wood: SIM 15* with Diamana Limited 75S 5-wood: RADspeed 18.5* with Motore X F3 60S 2i: ZX with SteelFiber i95 Stiff 4hy: TS3 23* with Tensei AV Blue 70 S 4i-7i ZX7, 8i-PW Z-Forged, Modus3 Tour 120 S 50*, 55* RTX 6 Modus3 Tour 125 60* RTX Full Face ZipCore DG Spinner S400 Putter: Toulon Chicago with a Quad Tour or HB SOFT Milled 10.5S with UST All-in Ball: Chrome Tour (but I might still have some Left Dashes hanging around) Bag: Ltd Edition Tartan, blue/green/yellow Using to keep track of my shots Tested: D7 Forged 3i-PW, KBS Tour-V 110S - Official Review Blind Ball Test (Ball #3 vs Ball #4) - Unofficial Review V3 GPS Watch + Tags - Official Review Vero X2 - Official Review The Stack System - Official Review Link to comment Share on other sites More sharing options...
adamflowers Posted August 10, 2020 Share Posted August 10, 2020 yep, I believe that soft-hard combination is correct. Quote ST 200 9.5°, Mitsubishi Tensei AV Blue 65 S ST 200 3w 15°, Diamana S+ 60 S Z H85 3h 19°, Project X Hzrdus Black Hybrid 6.0 P770 (2017) 4-PW, KBS Tour FLT 120 S SM8 50.08F, 54.14F, 58.08M, KBS Tour S Sigma 2 Fetch 34" Tour B X Link to comment Share on other sites More sharing options...
ZenGolfer Posted August 10, 2020 Share Posted August 10, 2020 Its my understanding that its because its softer, so it has more friction and spins more as it rides up the clubface at impact. It works much the same as how soft tires do on a racecar. That also explains why surlyn balls tend to be more durable: harder cover. Quote "I suppose its better to be a master of 7 than to be vaguely familiar with 14." - Chick Evans Whats in my Sun Mountain 2.5+ stand bag? Woods: Tommy Armour Atomic 10.5* Hybrid: Mizuno MP Fli-Hi 3H Irons: Mizuno T-Zoid True 5, 7 and 9-irons Wedge: Mizuno S18 54* and Top Flite chipper Putter: Mizuno Bettinardi A-02 Ball: Maxfli Tour X Link to comment Share on other sites More sharing options...
NRJyzr Posted August 11, 2020 Share Posted August 11, 2020 On 8/9/2020 at 7:02 AM, Middler said: Yep. It's friction, but it's not the grooves. Early tests with grooveless clubfaces produced more spin on clean contact. Quote Driver: TM Original One 11.5* set to 11*, Aldila NV75 X, 43.5" -or- SpeedZone, HZRDUS Black 75 6.5, 43.5" 3w: Cobra King LTD, RIP Beta 90, 42" -or- Stage 2 Tour, NV105 X, 42.5" 2h or 3h: TaylorMade Stage 2 Tour, Aldila NV105 S -or- RIP Alpha 105 S Irons: 3-PW Mizuno MP37, Recoil Proto 125 F4 (reshaft in progress, slowly); 1i & 3-PW Golden Ram TW276, NV105 S; 2-PW Golden Ram TW282, RIP Tour 115 R GW: Dynacraft Dual Milled CNC 52*, Steelfiber 125 S; Scratch 8620 DS 53*, Steelfiber 125 S SW: Ram TG-898 56*, DGX ss2x; Ram Tom Watson 55*, DGX ss2x; Wilson Staff PMP 58*, DGS; PM Grind 19 58*, stock shaft Putter: Snake Eyes Viper Tour Sv1, 34"; Ping Scottsdale TR Craz-E, 35"; Cleveland Huntington Beach 1, 35" Ball: Wilson Staff Duo Professional, Bridgestone Tour B-RXS, Callaway Chrome Soft Link to comment Share on other sites More sharing options...
Hook DeLoft Posted August 11, 2020 Author Share Posted August 11, 2020 Thanks for the responses. Quote 14 of the following: Ping G430 Max 10.5 degree Callaway 2023 Big Bertha 3 wood set to 17 degrees Cobra F9 Speedback 7/8 wood set at 23.5 degrees Callaway Epic Max 11 wood Ping Eye 2 BeCu 2-SW Mizuno 923 JPX HM HL 6-GW Hogan sand wedge 56 degree bent to 53 Maltby M Series+ 54 degree Ping Glide 3.0 Eye2 58 degree Ping Glide 3.0 60 degree Evnroll ER2 Ping Sigma 2 Anser Cheap Top Flite mallet putter from Dick's, currently holding down first place in the bag TaylorMade Mini Spider Bridgestone XS Link to comment Share on other sites More sharing options...
null Posted August 11, 2020 Share Posted August 11, 2020 On 8/9/2020 at 4:19 PM, greggarner said: If I understand correctly, the softer urethane cover by itself adds some spin, but it's more due to the softer cover being on top of a firmer ionomer mantle that really adds the spin. This is why you don't see a 2-piece urethane ball, because it wouldn't have the same ability to "grip" against the core. And why basically all ionomer balls are 2-piece, because the mantle would need to be firmer than the cover. ...I think This guy knows what he's talking about. There is a myth that softer compression urethane balls spin more then firmer compression urethane balls and that is absolutely not the truth. It all depends on the layer differentials (ie the softer cover working against the firmer layer underneath it) AmishJason and GregGarner 2 Quote Link to comment Share on other sites More sharing options...
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