I just finished running at SAAC 30 and will be back from vacation Sunday. For those of you interested I will e-mail you when I get back. The copper gaskets are $30.00
pr. which includes shipping.
They are made from extreme temperature copper alloy 101. I ran them all weekend at the track plus the previous several months. They are working great. A CAD file of the pattern should work, I will verify with my assistant that handles the programing on the router.