Lets eliminate all the long drawn out explanations. Lets assume I have the proper arrow and all the junk that goes with it. I've shot these several years so lets skip nocking point,brace height, spine , gpi, and blah, blah, blah. I can shoot several arrows with perfect flight and then a few will fly with some porpoise. I know it is from crappy release. Have you used any gloves that definitely clean this up some. No thanks, not interested in tabs. No I'm not cranky. Just don't want to drop 30 bucks on a glove that doesn't help. I do seem to do better with an old calf hair glove.
You're loosing back tension
Sorry, I don't think it is the glove. I experience something similar once in a while. Invariably it is my follow-through. When my drawing hand thumb slides along my face, under my ear and ends up touching my shoulder INSTANTANEOUSLY by using back motion to execute the shot, my result is terrific. I think about the "back of the shot" instead of the front (result) of the shot.