I dont think ES is going to taylor his business because DA put out a new engine. I asked about an 80cc pipe and he said not anytime soon, as it would take a great deal of money to re-tool to make them. I think he only started making the gas pipes as a favor, and know his bread and butter are the pipes for the pattern guys. Plus, I think he runs a very small shop. He would definitely do well with a 80cc pipe, I keep telling him this! But, I bet most people wouldnt buy his pipes for their DA because DA doesnt carry them or sell them, and the average joe thinks if DA doesnt carry a particular product, it must not work with a DA engine. Funny how that works.