Okay, I forgot who I was talking to in Lancaster Saturday about issues with a 1911 and leather holsters with the safety coming off when drawn from a leather holster.

Three safeties that might fix the issue from Brownell's www.brownells.com

Ed Brown, 087-245-890DE single 893DE for Ambi
Wilson Combat, 965-600-007DE only single, I'm getting this one in SS for mine
Gunsite, 340-100-044DE only single

Hope this helps