rob and jerry are exactly right....
too many shooters shoot too long a draw which stretches them out. you really can't have too short of a draw length. however too long a draw length and you'll never know what a perfect shot using back tension feels like. you'll end up w/a dead shot and alot of left and right misses from flinching. you're flinching because you're stretched out and don't have any way to follow through on the shot, so you end up forcing or punching your release. you have no choice. the way to tell if you're using too long of a draw is pull your bow back to the stops. if you're bow arm isn't bent when you get to the stops and you're anchor point then your draw is too long. back tension in a nutshell for those of you that don't know is a push pull act where you push with your "bent" bow arm while squeezing your shoulderblades together. do this and you'll be exausted after every shot but man it sure feels good when you're bow literally blows appart and you're poppin x rings.