TFFcheck the rules carefullythe elevator does not have to be controlled mechanically. Control does have to be via the wires. In FAI scale,F4B, the elevator does indeed have to be controlled mechanically. On the other hand, as mentioned above, why would anyone want to convert a simple, quick, light, very reliable system to one that has none of these traits? The electronic system I use is the Direct Servo Control jack on my JR radio. Nothing to modify.

62 year old, competition C/L flyer
Chuck