The other weekend me and the wife were shooting in the backyard. Her first shot the arrow went way off at 20 yards, and there was this awful thwacking noise from the bow. I looked it over and nothing wrong, handed it back over to her and again the same thing, I stood there confused, 3rd arrow she nocks and there it is.

She was putting her arrows on the bow wrong and hitting the rest on release. Sometimes you just need to take a minute and go over your gear take a look at what your doing. Sometimes its just 2nd nature and you don't realize something.