I was told for heavy oil, use the real deal
personally i have the big deal and it's a monster. My bowling team capt, had the real and i wasn't impressed but he also cranked the crap out the ball and was throwing over the 4th arrow and having it snap back to hit pocket.
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Stop Crying, Shut Up and BOWL!!! Everybody throws gutterballs back to back at one point in their life
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Getting Zero is an accomplishent that you should be proud of!!!