I agree that a thin kydex holster is probably a better way to go, but, probably like you, I remember when almost every holster used by both outdoorsmen and coppers exposed the trigger of revolvers and no one seemed to suffer much as a result. I used to carry my Commander in a belt slide holster that covered neither hammer nor trigger, but my gun had no extended safety lock and the mechanical detent was strong enough that I didn't worry about the safety lock getting accidentally swiped off. Anyway, nowadays, since they're readily available, an ultra-thin, lightweight IWB kydex holster makes good sense for carrying a Commander cocked and locked.