I finally got all the stuff in the mail the other day to get my 6-ports to open and I put it all toghter today. I got a summit RPM switch and a 3 way eletric valve. I fallowed everything from this site http://homepage.mac.com/jburger/jaysrx7/6PortSolution/. I think that it is Jasons page. I wired and hooked eveything up. The ports open right at were I set the RPM switch at 4000. The ports open fully in about a half of second at that RPM. They are the fastest I have seen them open. Well if you still have an airpump this is a good way to get the ports to open. There might be cheeper ways, but so far this system has been working everytime.