In my opinion the Copperhead handles more oil than the Ultra, mainly due to the cover being a sanded solid versus a polished hybrid. The core on the ultra is a bit stronger, but that's not what's in contact with the lane surface.
If I were playing the Shark pattern the Copperhead would be the first one I'd try, with the Twisted Fury Solid second.
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Lane Carter, Strike Zone Pro Shops - Salt Lake City, Utah
Brunswick Amateur Staff