I think Helifreak.com has some viodeos on the Trex setup. It may be easier to check the videos, the setup is hard to explain on a thread. also Ray's dvd series does a good job of going through the entire setup (mechanical as well as the radio). I got Ray's Electric Helicopers and eCCPM video to setup my Trex clone and it was very helpful in fact I've reviewed it a few times for differnt Heli projects. It shows the radio setup usin the DX7 so it may be very close to the DX6i setup.