Well, I'll throw my comments out there for you. I have this gun:
and with the grip tape on it the gun feels great in your hand. Everyone who picks it up just gives me that look that says" OOOOOOOHHHHH" Does it shoot softer? Not that I can tell. The gun balances great, and just feels so much better in my hands. I was concerned about reloading it. In dry fire practice if you mag was even slightly out of alignment, the mag would wedge in there and not load. In matches with bullets in the mag, I have not had any problems. The mag you drop shoots out, not just drops free. You will have to ask Cheely how it was to fit, because it came from him already on the gun. Will I be changing out all my guns to this grip? no, but I do want to try it on my open gun before I decide. Oh, this is the STI grip not the SV.