I am in the process of learning to bowl 2 handed (no thumb) right handed and use a polyester spare ball and a rubber ball to create the same reaction I will get with my "high performance" balls using my thumb. My revs are too high for the ball speed to throw anything with any traction. I have an emerald Vibe that snaps off the lane at 55'.
I am considering 2 handed as a lefty due to a lack of strength and revs.
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