I have one of these. Wilbert is correct regarding the move this ball will make.
I'd kind of say it is between a Neptune and a Venus, in strength. It depends on the layout you have, and how many revs you put on it.
Also, the amount of oil left on the pattern you're bowling on.
But it is a pretty strong piece. All depends on your opinion of "dry".
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Duct tape is like 'The Force'. It has a light side and a dark side, but it still holds the universe together.
Some days you're the bug some days you're the windshield.