Original poster: "Bill Vanyo by way of Terry Fritz <twftesla-at-uswest-dot-net>" <vanyo-at-echoes-dot-net> I've read the disk for a SRSG should be made of lexan or C-10 (don't even know what C-10 is). Where can I get lexan, and how do I cut it? What about the heavy white plastic cutting boards are made of? (polyethylene?) Is there anything that will work that is readily available? Thanks, Bill Vanyo