I think you just might be peeking. NO PEEKING! Try to keep your eye/focus on the spot you are shooting at until you see the arrow hit. Peeking around the sight to watch the arrow will result in such problems. The problem is you do it without thinking. To this day I still have a little mental chant of things to check as I draw and anchor. I won't let myself release until I do this. The last one is no peeking. I consider this a part of the "follow through" which is just another portion of "form".