I have three of these things now. I've got an Air Force Champ, a GStar Proto, and a new KC Open stamp Champ, all max weight. The Air Force and Proto are in the same ballpark, though the champ is definitely a tick more stable. They're just on the edge of where I can get turn on a 400' backhand drive, although I mainly forehand with them (which turns plenty at 320' bcz I suck at forehands...)
I had to buy the KC Colossus, 'cause the lion stamp, so I pulled the others and threw that in the bag. ftr, both the KC and Air Force are max weight Orange champ with bubbles in the rim.
The KC stamp is King understable at high speed with a much harder hitting fade. I'm hoping a slight hyzer will put this on a usable line because this thing bombs... like further than Kings did for me.
so, I like all three at this point enough to put up with the variation, but as much as I'm digging them it also reminds me why I dont bag more Innova drivers.