I too carry a full size sigsauer P220 45acp. But I admit, that while it's one of my favorite guns in the world, it isn't one of my favorite carry guns. I only carry it about 20% of the time. About 20% I carry a PPK 32acp. The other 60+% of the time, I carry my CZ-82. ALL of them are carried in a Crossbreed holster.
Oh; forgot the other part of the question. Retired military