Buddies pro shop drills bowling balls to perfection. I sent my favorite fitting bowling ball to them about two years ago and they made a thumb slug, got my measurements and pitches. Now everytime I order a ball from them it comes drilled and ready to throw. I save a lot of money also because they drill both my Son's and my bowling balls, no shipping, no taxes. Plus I am supporting a pro shop.
Even with all that said, they will look at a video if you send them one so they can watch you bowl. This helps for reecommended drillings.
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Nicanor (Ten On The Deck)