ihave had some consistensy issues since starting out last year,,and i think that my biggest problem in my grip on the bow,,i have no idea how i started holding the bow,,but i resently started holding the bow back with just my thumb and rest of hand off to the side of the bow and i did good like that for a while and then my groups starting opening back up and now im back to were i was before which is good enough to kill a deer but i want to tightin up groups so i can make more accurate and ethical shot and not being the way i am not and not noing were in a 8" circle the arrow will hit,,

ps i read in new issue of bowhunter magazine in an article that said to place the grip in the "lifeline" of the hand or the line between the thuumb and the index finger,,i tried this and my group did not improve,,PLEASE HELP!