I like my 21 as is except the night sights need replaced soon. I can shoot 45 Super with a 19# recoil spring. With standard or +P 45 ACP it is very soft on recoil. It is a thick heavy slide but I like it. It is purpose built to handle any amount of +P someone might put through it. I do like the slim slide and frame of the 36, that is why I no longer have the G30 that said the 30 is softer shooting.
Glock 17, 19, 21, 26 X 2, 32, 36 and 42.
Proud member of the PigPen. Embrace the Pignose.