Since everyone is typing everything but an answer to your question. #1, congratulations for putting down that Shock & Awe. #2, I have a 5x3 Paradigm with a 4" pin buffer. I throw the ball around 18mph with a rev rate to match. For me, standing against the ball return is an everyday thing, so this layout allows me to get the ball to my breakpoint before it unleashes.
5x3 should be good for you as it will help prevent the ball from burning up on you. Good luck and I hope you experience the success I have with mine!
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STAY
FF MY BL
CK!
...N
thing strikes like a STORM
Just call my ball Capt. Crunch