Regarding ammo, (specifically 9mm), for compacts, snubbies, is there that big a difference between standard, +P, is +P wasted on a short barrel gun, is 'short barrel' the best way to go. I spent a little time on the Speer site, the differences aren't that big, about 10%, (maybe 10% IS a big difference, IDK), interested in the what the experts think.