Thanks for the evaluation of 1911 mags. It was quite comprehensive and good information, as usual. I own five 45 Commanders and two Government models, and I have settled on the Colt 8-round magazines as a standard for all. I picked those primarily because of the flush base. I love having nine rounds in the carry gun, but I don't like an extra quarter inch or so extending beyond the grip. Previously, I used Wilson Combat mags because all the guys coming through my classes that shot Kimbers said they had to use Wilson mags with them to make them work reliably. Funny, huh? I never thought of a drop test. I did drop a couple of my Colt mags yesterday and nothing popped out. By the way, I'm using the Ruger/Polycase ARX rounds, and so far I have had no feeding issues except one in the S&W 1911 SCE Commander. The most expensive 1911 I've got, and it's the one that sometimes hiccups.