As Mr Track just stated, the Super Freak wants to roll early causing more of an arc in the backend. The Phenom has a much stronger backend, if and when you can get it into a roll (which is necessary) to see the change of direction. If you try the Super Freak and still can't get it into a roll, you may want to try some negative static weights (negative side or thumb weight). The negative statics will help the ball stand up sooner and may help you if you have a low track or low rev rate. Hope this helps...
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Rick Leong
Ten Pins Pro Shop
Track Pro Shop Staff