The HUGE difference between these two is the fact that the BW is asymmetrical and the Rival is symmetrical.
The Black Widow, for the most part, is clean through the front with enough oil on the lane and when using the #1 layout, very angular off the breakpoint.
Haven't thrown a Rival, but I'd expect most layouts would make it smoother overall than the BW.
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"A word to the wise ain't necessary -- it's the stupid ones that need the advice." Bill Cosby
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