I carry a .40 and a .45. Both glocks and are both the same size. A 23 and a 36. I actually think the 36 is easier to shoot. The recoil of the 36 is easier for me to deal with. As soon as I get night sights for the 36 it will become my primary carry. Don't rule out a .45 before you shoot one. I think the .40 has more snap to it than the .45.