1) the 1911 grip is about 4mm longer than a full-size glock grip, but the baseplates of Glock mags stick down about another 3 mm.
If 1911 grips work for you, there is no reason you shouldn't be able to get plenty of purchase on any full-size Glock. I have big hands myself and I have no issues firing mid-sized Glocks. They soak up recoil pretty effectively so you shouldn't have a hard time mitigating the tendency of the gun to jump off target, which is the only real issue with a shorter grip.
2) The grip angle on Glocks is not ideal, but the fix is easy...don't point them at the ground. Natural grip angle is all a matter of what you're using a lot. If you primarily use Glocks, 1911s will point high until you get back in the habit of using them.
I grew up shooting 1911s, and after just a few thousand rounds through Glocks, I found that my muscles had completely adapted. I would guess anyone who puts, say, five thousand rounds through guns with a Glock shape will be 100% tuned for Glocks. So shoot them for a year or two and you will be fine.
If 1911 grips work for you, there is no reason you shouldn't be able to get plenty of purchase on any full-size Glock. I have big hands myself and I have no issues firing mid-sized Glocks. They soak up recoil pretty effectively so you shouldn't have a hard time mitigating the tendency of the gun to jump off target, which is the only real issue with a shorter grip.
2) The grip angle on Glocks is not ideal, but the fix is easy...don't point them at the ground. Natural grip angle is all a matter of what you're using a lot. If you primarily use Glocks, 1911s will point high until you get back in the habit of using them.
I grew up shooting 1911s, and after just a few thousand rounds through Glocks, I found that my muscles had completely adapted. I would guess anyone who puts, say, five thousand rounds through guns with a Glock shape will be 100% tuned for Glocks. So shoot them for a year or two and you will be fine.