Sometimes I carry my Kimber Ultra carry in 45 acp, 7 rounds and 2 additional mags and sometimes I carry my Sig P938, 7 rounds with 2 additional mags. They both are 1911 based and operate exactly the same, so I don't have to think about which sidearm I'm carrying. I also shoot a Springfield Armory M 1A so they all operate exactly the same. You are programed, so whichever model you carry, they all preform the same. Cocked and locked, and thumb saftey. They all operate exactly the same so the imprinting and drawing of the weapon, no matter what you are carrying at the time, is automatic.