Must be other demons at work here, since myself and others on this thread have had no such problems when regularly carrying the 1911 pistol.
Question: If the gun doesn't move in your holster, how is it going to get off safe? It is possible to off safe the gun during holstering. I put my thumb under the safety when holstering. Just enough upward pressure to know it stays on.
I thought that also but checked the safety once holstered and it was on safety.