Pretty Good advice actually!!

It is more than likely some torque you are imparting on the grip. It's frustrating for me to know someone has a problem and be too far away to work on it in person. I think Swamp is pretty close isn't he? Have him watch you shoot and give you his 2 cents worth.

You really should just let the bow set in your hand don't grip it! Also concentrate on Aiming and let the shot just happen.

If you are punching that trigger you can get lefts and rights from slight flinches in anticipating the shot

Hard to say without watching you.

Dan