Yeah, I didn't realize what was being said; you are shaking at full draw from what it sounds like. Only you know if you are overbowed or not, but normally trying to hold too much weight can make you shake, especially if you are using the wrong muscles to do it. How heavy is the bow (draw weight)? Any chance it is stacking because of your draw length? Maybe you are making such an effort to push with your bow hand that it causes you to shake? Hard to know without seeing you do it. I guess I was thinking you were talking about the bow moving at the shot, not at full draw, or simply that you were having a hard time holding it on target.