I am a rookie builder trying to assemble a U Can Do 60. I am totally stumped by the elevator setup though. I am using a Futaba 6EXA with 3004 servos through a regular Y-harness. I got the elevator setup mechanically centered, but then when I go to full deflection with the radio, one side goes higher than the other. And then on the down side the one that was low on the high side goes lower than the other. I cannot figure out how to get the same throw out of it.
I tried switching servos, and adjusting the pushrod location on the control horn to no avail. I even called Great Planes/Futaba for assistance and they were stumped.

If anyone can assist me I would be forever grateful. This silly little problem has brought my project to a halt.