Originally Posted by SolidBrass
Avoid the "fully supported chamber" rounds in the 29 of course. You will be happy.
Why do you say that? I shoot Swamp Fox's hottest stuff (200gr @ 1325 fps) in both my G20 and G29. Underwoods stuff is not that hot. I see Underwood as being a nice compromise -- price vs not-as-hot stuff.
G20SF: 10mm KKM, .40 S&W KKM, .357 Sig KKM; 9x25 Dillon LWD; 22# spring, Arredondo +4 mag extension
G29SF: 10mm KKM; 9x25 Dillon LWD; 23# spring, Pearce +0 pinky grip
G33: Pearce +0 pinky grip