Danny, funny about the extra gloves...I was thinking the same thing ou answered yourself.
question maybe something for you to think about.... when you are using that grip, what are your fingers doing. I seen many people do this and they put the fingers out real rigid to put the grip right in the crotch of their thumb/index finger. Any movement of any finger will move that " crotch" around.

You can simulate it with your finger, put pressure on that part of your hand with a finger, now wiggle or move a finger just a bit. I can feel it move on my hand. This really isnt something most need to worry about when shooting at an animal though. Too many other things to be thinking about, just grab the bow and shoot, so what if your 1/8inch off.... you got more room than that.