When I draw back, my fingers cut the string loose within 1 or 2 seconds of hitting my anchor. Shooting a 65# trad bow, there is no "holding" at full draw. :^) I try to wait until the deer puts its head down, turns, or is obscurred by tree leaves, or brush. PRIOR to shooting I try to get my body into a good shooting position, have my bow arm up and extended, bow slightly canted, and fingers taut on the string...ready to go so the deer will see very little movement when I draw back.