When I got to my shop I looked at the specs and picture in my Lane Masters catalog and the two cores look the same, both the XD and Solid Strike! The number are slightly different, but the pictures look the same! The numbers are going to be a little different because of the XD not using filler material like the Solid Strike, Sure Strike, and Counter Strike!
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"Train a child up in the way they should go and when they are old they will "Get MOTIVated, be a MoRich Lane Master with a Big B and not turn from it.
Bruce Campbell
USBC Bronze Certified Coach
IBPSIA Certified Technician
Originator of the -35deg x 25 leverage drilling!
http://www.motivbowling.com/products/2/