Sorry for the delay in a LOT of thoughts I have on the Black Cats - I just started a new job, and have been incredibly busy the past week.
I played a bunch of rounds (around during my time between jobs, here are my thoughts and some pictures to support some good/bad things.
The Lynx Black Cat's have a more "traditional" loft setup, very similar to my old Adams Idea Black irons. When I switched to the Cobra Irons from the Adams, I was expecting a giant distance gain - That turned out not to be the case. (I will use my 7 iron distances for these examples). Here are the lofts:
^Adams Idea Pro Black CB1 Forged Irons Lofts
^Cobra King F8 Irons Lofts
^Lynx Black Cat Iron Lofts
Adams Irons: Average 140-145 yards (only on very well struck balls would I reach 145)
Cobra F8: Average 145-155 yards (very small increase, and only very well struck balls would reach 155 - and trended toward 150 more frequently after lessons)
Black Cat: Average 145 (really doesn't matter how good or bad I strike them, they go right about 145 in almost any situation)
As I have taken some lessons toward the end of 2018, I noticed my distance gaining a little bit. I directly tie this to the golf lessons. I have had two lessons with the Black Cat irons as well, so any technique/swing improvements will have been translated to this as well.
My conclusion a few weeks in is that the cobra F8's have a few more yards to squeeze out of them, while the Black Cat's are incredibly consistent (and do fly straighter). I will continue to play around with all three of these irons, and update from a range session using only these irons.
After the aforementioned golf lessons, my ball striking improved. After taking some of them, I began to hit my irons with backspin - something I had only seen on TV or YouTube. After comparing the groove depths of the Cobra irons and the Black Cat's - I was concerned I'd lose this cool party trick.
After my first 8-ish rounds with the Black Cats - almost all irons seem to drop and stop within a 2 foot radius of my divot (left/right/forward/back depending on if I had a slight draw/fade or slope of the green):
I have WAY more of these types of pictures - but figure this does about show it. All of these shots were hit with a club between the Black Cat PW-7 Iron. This is a positive if you look at it right. Combining this with the very consistent distance of the Black Cat Irons, you will pretty much know exactly where the shot will land and end at the end of almost any iron shot. The only time I experienced major backspin is on a green greatly sloped against the tee box on Par 3 Hole 17 at Meadowbrook CC in Richmond:
So if you know what the greens are like, club up!
Overall, I am enjoying the predictability of these clubs, but the potential loss of distance could be a killer (since I don't hit the ball far anyway)
I'll continue to update, and would love to answer any questions anyone has!
Note: in these spin pictures, I am using the Srixon Z Star XV in each shot (bought a bunch of them at Dick's during their BoGo)