All of the "drills" in the world will do a victim no good if the worse case event occurs ie; unable to perform said drill or manipulate your pistol, (for whatever reason). If your one chance at survival is to try again, to pull that trigger... would you? If your firearm is incapable of this, then you are in deep kimchi. If you have it, you may have a chance. Even a low chance is at least a chance.
Why would someone not want one more ability, one more way to survive. I don't get the "more is useless" argument. Makes no sense.
