Hey Aaron.
I am one of those guys with short fingers and small hands..the big frame glocks are just too big for me..I can shoot the smaller framed glocks alright, but there is something about them I do not like..
I don't have a Sig220 right now, but a buddy of mine does..he carries it as his duty gun..one day at the range we were goofing around and I asked if I could shoot his 220..
I was surprised that it fit my hand and I pulled up on one of our targets at 15 yards and shoot two shots touching in the upper A/B zone..I was impressed..
there are still other guns I prefer over either the Glock or the SIG..but when the time comes, I probably will get a SIG