Any general specs work best, or is it just like buying a ball for a 3/4 roller? My teammate (friends dad) is rollin a C300 beast, I was gonna get him a new ball as Christmas present. Hes been putting up with us wild maniacs for years, I figured it would be a fun present. All Im looking for is low end symmetric core, dont care which Co. Im planning on getting the ball and setting up a drilling appointment, I want to just drop the ball off and not get a phone call about any problems.

As far as specs go it's basically like buying a ball for a 3/4 roller.  The "standard" full roller layout for max hook puts the pin 3 3/8" from the grip center located at 45 degrees from the centerline into the negative thumb quadrant.  So, to keep from requiring a balance hole ask for a 3 - 4" pin out and 2 1/2 - 3 oz top weight.  A link to the Ebonite symmetric drill sheet is below, the very last layout on the sheet is the full roller.  You will probably have to increase the size to be able to read it, look for a dropdown box that shows something like 37% and enter a higher number.  --  JohnP

http://ebonite.com/images/uploads/drill_instructions/symmetric_core/symmetric_core.pdf