With the cores of todays equipment being so strong the only thing I find to make a difference is the coverstock so as of the last year I have drilled all of my equipment basically the same 4 x 5 with a slight variation in pin placement(higher-lower) and let the cover stock do the work telling me which ball to use it has simplified the game making it infalable to choose what I need to throw on what condition and scores/average just keeps on improving do to increased consistancy/confidence knowing what ball to use and how it is going to react.
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X's for show, /'s for dough
ROTO GRIP KING OF THEM ALL