Uneven elevator trim while using AILEVATOR

I have the A9 installed in a Seagull 120 Spacewalker which now has four flights on it. My model type setup is 2 aileron and ailevator which assigns chan 2 = ELEV and chan 6 = ELE2 with each channel driving its own servo. During the test flights I had to input a good bit of up trim to achieve level flight. Yesterday I noticed that the chan 2 elevator half was not even with the other elevator half and that it appeared to be trimmed more. I confirmed this with the servo monitor page where I could easily see the difference. I duplicated the model on another memory and then proceeded to check everything I could think of and then just started going through menus trying to discover what was causing the issue. I remembered reading on the RCU Futaba support site that Bax had indicated (for the 14MZ) that you should use the 'ailevator page' to adjust the elevator throws when you use the ailevator function - did not say why though and for some reason that stayed in the back of my mind. On the Spacewalker I had adjusted the elevator throw for both elevators using the EPA page instead of the AILEVATOR page. So I put the EPA throws back to 100% and adjusted to the correct throws on the AILEVATOR page and low and behold the trims for both elevators produced the same amount of movement. I went back and forth between using the EPA and the AILEVATOR and each time it confirmed the same results. If you use model type AILEVATOR then you need to use that function when adjusting the elevator throw instead of using EPA.

Howard