If you want to make the ball more stable and consistant go with DP3, if you want to reduce backend reaction go with Nick.
I know from personal experience that ball is very strong off the dry. I would try placing a balance hole maybe 3 inches out from your grip center. take a larger bit like 1 inch or so and go shallow, not too deep to start. that will make the ball smoother first.
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Timothy @Juniors Pro-Shop
Roto-Grip Star Proshop
Etonic Stabilites Dress wearer.
Staff Writer 7-10 Split Magazine,EGO Communications
Montreal, Quebec.