Both of these I have drilled Pin under bridge (although the VG Mass bias is kicked out further). With both coverstocks original box finish the Reign of Fire hooks earlier and doesnt have as much in the backend. Where the VG comes around the corner a bit harder.  I havent matched them both up together but I would say the VG is about 5 boards stronger in the backend.
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TJ TROUT
 PBA EAST REGIONAL MEMBER
 Vise Grip Staff "choice of champions"
 thomasjtrout@yahoo.com
Keglers Pro Shop - Owner (www.keglersproshop.com)