I have an Airtronics RD6000 Tx and an Airtronics 92765 Rx and am using identical Airtronics servos. For the first time, I am trying to set up a split elevator system. Following the manual directions, I first restored all factory defaults. Then I slaved the gear channel (Aux.) to the elevator channel. After I dialed in some up and down differential, the two servos operate "together," but not equally--not even close. If I try to adjust the difference mechanically (linkage, clevis hole), the neutral is off and the throws do not match, either. If someone knows what I am doing wrong, I would appreciate a word of advice. If not, I'll just go with the other alternative of a Y harness. Thank you for reading this far, Dzl