I thought there was only one, sorry. Like in a lot of high end balls there is a marked MB that, when put different places on the ball, affects the backend motion of the ball. So I guess that the Bully series' MB doesn't effect much?
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Things to do at a bowling alley- Will continually update
*Root for the other team- Bring Banners.
*Make fun of your team- Bring Lettuce.