I cannot seem to hold my Glock 19 or 17 without inadvertently holding down the slide stop. With a high grip, thumbs forward and my support (left) hand fully cammed down and locked, the meaty part of my left thumb rides the slide stop lever. I have big mitts at 6'5".
You can get a sense of my grip from this video. Although it's not a very close shot of my hands. http://www.youtube.com/user/pointfiv.../0/Ae_cvWsJE6Y (There is a bunch to work on there. Right now I'm trying to get my press out and pull back on the same line and not moving my head for starters. I'm waaaay open to other criticisms of the video!)
I'm thinking of putting the Vickers slide stop on my Glocks, but don't think that hardware will fix what seems to be a software issue. I love the pistols and I'm already invested in Glock gear, so I'd prefer to stay with Glock 9mm but I've considered switching to M&Ps if I can run them without the same problem.
This is slowing me way down on reloads and I'd like to try and figure out a way to grip the gun well, control recoil, and still utilize the features of the gun.