I used a throttle cable instead of a pushrod set-up. The cable has worked so far as it is sturdy enough. I also used E-Z connectors both on the servo and the throttle control horn. I wanted to use the E-Z connectors on both ends, but the pushrod I had was too small in diameter, thus I wasn't able to tighten down the screws on the connectors. Using a thicker, threaded type cable allowed me to do so. Probably an unconventional way, but the cable is sturdy enough, and after several flights it has worked fine. I have an os 90 fx on my 4 star 60.

Joe