Rock Leone 90RF: Feedback?

Hello all,

I just wanted some feedback on this new combo I found which consists of a normal plastic facebolt, a leone hybrid wheel, a rock metal wheel, a 90 spin track and then RF.

Obviously this is an attack combo but also; is a metal face bolt better than a plastic one in this case?
a combo like this is already known.

also you dont have any evidence to prove your theory.

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http://worldbeyblade.org/Thread-Build-me-a-combo-2

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