This, actually, is an anti-safety argument I can understand. Up-to-fire, to me, would be a problem. If it's natural for a shooter, that's a fine thing. It's not for me.Liberty wrote: The fly in the ointment with a plan such as this is that Some safeties snick up to go off, and some down to go off. My 3 carry guns all work the same way snick up to fire. This is the main reason I will not own a 1911. If someone uses and trains with a 1911, and decides to carry a Beretta, any immediate call to use the available handgun could be a disaster.
I grip a 1911 with my thumb on top of the safety and it never moves from there. It's not an extra step to select "fire", it's an extra step to leave it in (cough) "safe" until the muzzle is downrange of my weak hand. That's the step I practice, the phase of the draw where I consciously don't take the gun off safe.
Taking the gun off safety is very natural to me, as long as it's down-to-fire and a nice comfortable thumb rest.
Up-to-fire, to my spinal cord, sounds like extra motion. When the hand is increasing its grip on the gun the thumb naturally wants to come down.
I get this anti-safety argument and I never figured I'd say that. I'm wired for down-to-fire with a method that requires no thumb choreography. Up-to-fire, or a slide mounted safety lever I couldn't ride all the time - not consistent with my wiring. I wouldn't carry a gun built that way because I'm not built, muscle memory-wise, in a compatible manner.