Hey ten on the deck,
I just drilled my Aggressive 1.5x1 from an idea I got from Mitch B. You may not have to go quite as weak as I did because my speed to rev ratio may be different then yours. But even with this layout, the ball rolls very nice and even throughout the lane. It definitely does not jump on the backend but still hits very well because of the stronger cover and weight block.
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Rick Leong
Ten Pins Pro Shop
Track Intl. - Amateur/Pro Shop Staff
Vise Inserts Staff