Hammer down and sitting on a piece of match stick. The matchstick will sit to one side of the firing pin and this way will keep pressure off the rebound spring and firing pin spring.
Keep yappin Bill and you will show how much you do not know. I carry my Star Model B the same way and as soon as the hammer is pulled back the tiny piece of match stick falls clear of the action. You go ahead and be a fool and compress that spring so it can more easily let the firing pin contact a primer when the gun is dropped.
With all due respect, i think the advice you are giving is silly.
I'm not a big fan of guns with safeties, honestly. The only case where I think they have merit is in single action only weapons. Even still, I don't want any mechanical device that can prevent my pulling the trigger in an emergency. The simple idea of obstructing a single action hammer fired gun with a piece of a matchstick as a means of safety makes as much sense as challenging Murphy and his Law to pistols at dawn.
I own a Beretta 950B, and have owned a 950BS in the past. Typically, if it gets carried, it's hammer down.
