[HumblePie]

Our shooter surface was a piece of 1/8" thick plastic material called Starboard. It's designed for marine applications and has a nice grainy surface that reduced the surface area in contact with the disk. In our testing, disks slid across the Starboard much more easily than polycarbonate. For rigidity (at a low weight penalty) we laminated the Starboard to a 1/4" piece of Coroplast and had the sandwich waterjet cut by a sponsor.