Well I don't know about BTM, but BJI rates it at 53, and threy say when you knock the polish off, it is a good 55 or higher.
I personally never threw it with its OOB surface, but at 1000 abralon, it is a true monster for me. Strongest ball to date, had a Dimemnsion same surface, stronger drill by a little, that ball hooked a couple boards less, and was less consistent.
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What is sandbagging???