Hivoltage,
the Futaba 9Z is the only Futaba radio that will Not overdrive the throttle with cyclic to throttle mixes. It has a dedicated program to do the cyclic to throttle and not overdrive the servo. The rest of the Futaba computer radios will overdrive the servo unless the ATV's are maxed on throttle and then the throttle linkage set up so it won't happen.If using a cyclic to throttle set up in the Program mixes.
David