Charlest,
Not at all... the Epicenter core is BRAND NEW, designed by SEISMIC, and cannot or has not been used by any other company. The Coverstock is a strong pearl, a sligtly modified version of the Solaris cover. Overall strength is a little more than the original Solaris but with a different roll and shape.
The core has "medium" numbers because we believe that length and reaction shape can be dictated by core numbers rather than just cover strength. The medium differential allows the ball to get down the lane easy without loosing much energy before the strong pearl cover grips the back end.
Hope that helps!
Ryan
Edited on 6/10/2009 6:49 PM