Hey Jody,
A very good and informative post, thank you. Glad to hear you didn't just give up like many people do without realizing how much can be affected or changed with minor adjustments. Welcome to BR and the Track forum bud..
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Hey Sir Bowl,
Achappy is correct, the stronger influence on the adjustment was most likely due to the shortening of the core by drilling the fingers deeper. However, by doing this, the positive static weights were also reduced/removed.
Under the umbrella of static weights are the following and their reactions.
Positive statics: pos side, finger and top weight - all make a ball go longer before turning over and have a stronger backend reaction
Negative statics: neg side, thumb and bottom - all make a ball roll sooner and have less backend
Hope this helps explain some...
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Rick Leong
Ten Pins Pro Shop
Track Intl. - Amateur/Pro Shop Staff
Vise Inserts Staff