Yes, I do--I've owned Glocks for 16 years. I have not had the problem myself, but the original poster's issues sounded similar to a bunch of accounts that I'd read where other shooters had "limp wristing" problems. Lightweight-framed guns are not going to cause problems for most shooters, but if someone has the type of grip that will cause limp wristing problems (e.g. failures to eject) they will experience problems with those types of pistols before other types. In any case, it sounds like that wasn't the issue in any case and 7.62mm is back in the game!