To all,
In the past, there have been Xcel spreadsheets with the ball ratings for stroker, cranker, and tweener from some bowling related source. Would anyone have a link or have a copy of the most recent published ? I would appreciate it much. Tring to fit some aresenal gaps, and it helped me in the past.

Thirtyclean
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Thirtyclean (Well maybe 29, or 28, most of
the times !)