By negative weight do you mean putting the CG on the track side of your grip center? Static weights have little to do with ball reaction when dealing with dynamic cores. Order of importance, after bowler's style and lane conditions, are surface (type and grit), pin position (flare), MB position (assumed on a symmetric ball), then weight holes and static weights.
So, since I have a Slate Blue Gargoyle, highly polished, with the pin 5" from my PAP and above the fingers, and the CG negative, do I have all bases covered?
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Penn State ProudRon Clifton's Bowling Tip Archive