I have to side with Cane on this one. I have shot 1911's for years now and tried every mag that is out there.
The Tripps' mags are head and shoulders above everything else out there. I rebuilt a Taurus 1911 for a friend and got him 3 Tripps mags to go with the one lone Taurus provided mag. When he opened the case and checked out the Tripps' the Taurus mag went back in the box and he now carries Condition 1 with (2) trips in an off side mag holster (courtesy of CA357
Buy the Tripps - you WILL NOT be disappointed.