It's a bit unclear.
Ive stated multiple times that "my high and low rates are perfectly equalized". Heck i dont even think the transmitter being in high or low mode even matters, especially since their is no battery in the plane to juice the servos?? You just tighten the set screw on the linkage stoppers to set "neutral", the rates only matter after you power it up.. and like i mentioned "fairly clearly". The plane is set up perfectly... its just too sensitive to input... even on a perfectly tuned in throws (25°High , 12°Low for the Sea Otter).