Drilling the Fingers of a Bowling Ball - Innovative Bowling

[aello465]

Let me offer another perspective in thumb/finger drilling sequence for other viewers. You should drill fingers first because once you have both of them drilled, what happens if you accidently drilled one or both slightly off mark? You simply position the thumb left or right of the original centerline to keep the spans correct. The grip is only rotated the slightest bit, which will have no effect on the intended reaction. Rather than drilling thumb first and trying to be accurate on TWO holes.