Definitely is stronger than advertised, which isn't a bad thing.
Used mine last night in league and was only a few boards right of guys throwing Black Widow Pearls. In fact 5 out of 8 guys were using BWP's. Was not hard finding my ball on the rack
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Mine is drilled 5 x 5.5 with the pin over the ring. Very easy length through the heads and a strong backend move. Would like to drill another a bit stronger as a good 1-2 combo for Medium to Medium Light.
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Repetition is everything..