Nice shooting Mr. Hunt! I have 3/16 forward in my thumb and have for a few years. You either get rid of the grab or throw the ball through the roof! I actually have 1/8 palm in my thumb too to help me get around the ball a touch. You saw my track, it could stand to drop a bit! My ball might thump less going down the lane.
One other thing, be careful with roling forward and extending your ring unless you're going to roll the ring pitch away a bit. If you start feeling it in your elbow or forearm, switch the pitch or drop the ring.
Gotta hit the road to Hillsboro!
Take care,
Brett