ORIGINAL: gus
Perhaps I expressed myself wrong, perhaps you mis-understood... You can not have 1 servo per elevator half. YOu need a *reversing* "Y" harness, and then trimming is not possible short of mechanical adjustment of the control linkages. i.e. you may as well have purchased a 4YF.
I understood. You only need a *reversing* Y harness if you can't get the linkages on the correct sides of the servo. In spite of not handling your situation, the 6EXA still provides all the functions that most sport fliers will ever need.