Here is another thing that might help. Are you using an anchor point? If so, find your anchor point before you draw. Now come to a full draw and pass down through the target, slowing bring the sight up to the target and release. I find that if I stand there and hold the draw while trying to get spot on the target, it compounds my shakes. Shooting faster does two things. It doesn't allow the bands to cool off. And it decreases muscle fatigue. Might help might not. But for sure shooting a lot will slowly solve your shakes buy building the particular muscles needed.