There are many different hand positions in bowling. Here are the basic ones.
Cupped, Straight, and Broken are the 3 basic vertical hand positions.
The 3 basic horizontal wrist positions - 12 o'clock, 10:30, and 9 o'clock.
Using different combinations of these, changing hand positions in bowling will greatly affect the balls roll. You should Try them before changing bowling lane lines, bowling equipment, or bowling ball layouts.
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