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Added Ron Hoppe Thumb Only Test for pitch and size

Posted: August 24th, 2015, 11:44 pm
by kajmk
Added to
http://wiki.bowlingchat.net/wiki/index. ... ing#Drills" onclick="window.open(this.href);return false;

Thumb only test - about 1:35

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wiki Coaching tree.JPG
wiki add Hoppe.JPG