BobPHX and Planefan what transmitter/rx are you guys using. I don't know if I can mix my rudder on two channels. Only Aux 1 and Aux 3 have include mixing so that both channels move with the trim (rudder in this case). I have the 8103 Tx with the 649 rx. I would love to step up to a 10X and have all the mixing capabilities. Kent.