Here's the FAQ's on the new rule changes this will tell you:
http://usbcongress.http.internapcdn....018BTS-FAQ.pdf
excerpt:
What is the new static weight rule exactly?
Starting Aug. 1, 2018, bowling balls without a balance hole weighing more than 10 pounds will be allowed to have up to three ounces of static side, thumb or finger weight and up to three ounces of top or bottom weight.
Bowlers still can have a bowling ball with a balance hole until Aug. 1, 2020, but any balls with a balance hole must stay within the current static weight specification of one ounce for finger, thumb or side weight, and three ounces for top or bottom weight
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