Ok I was sitting in my empty house (moving in 3 days) fondling my new XDS and my Nighthawk 1911 when a crazy idea hit me. I have a 10 rd extended mag 1911. It and the XDS magazine look relatively similar both being for the almighty .45 ACP . There is a bit more of a recess and a 1/2"x1/8" cut going down the front left. Could a 1911 magazine be modified to run in a XDS reliably? would the modifications not allow it to run in a 1991? Does anyone have a 7 rd XDS magazine and a Officers frame 1911 they can test out? Having a 10rd backup would be sweet. I already carry the 10 rounder when I carry my 1911 so it would simplify my EDC. Anyone feel like breakin out the dremel?