when accuracy testing for accuarcy; how do you use the bags. let me splain. i made a front rest to the right height with a bicycle tube filled with kitty litter, i have a bulls bag to rest my forearms on. should there be some down pressure on the front rest; or, once getting the sight picture just let the bottom of slide (auto) or bbl. (revolver) rest naturally. i ask this because after a couple of decades of no handgun use i have become VERY bad with there use. i won't even talk about offhand shooting.