Hey Guys got this from Fred a while back here is the info on the ball:
Ravage VI, which is an OEM ball for ABS, has the same cover as the original Ravage (PK18). The core is the same also (Dual Flip Block), however the RG's were lowered and the Differential was increased. Basically what this means is that the Ravage VI should rev up easier and flare more than the original Ravage. The motion of the breakpoint will probably more forward rolling compared to the Ravage.
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"Bowling is like a box of chocalates...you never know which ball to use?"