Hi xray, there have been cases of RF interference caused by all metel rods connected to the engine throttle. The vibration of the engine on the metel can set up an RF signal which has been known to cause problems. To prevent this its best to solder a threaded coupler onto the end of the flex cable and then use a nylon clevice threaded onto the coupler to connect to the throttle on the engine. At the servo end you can use a screw lock type of connter. The cable just pushed through the hole in the connector and then you tighten down the screw when the cable is whwere you want it. Hope this helps, Fast![8D]