Hey Guys I have either built or handled 7 of these airplanes and never had a problem with too much restriction on the skins,although on the last 3 I have seen they have been cut back slightly.

The only one specificly bult for me was the first one, and it`s the same as the rest.
It`s no problem if the skin rubs a little on the aileron ,or even deforms the skin surface it`s made to work that way there is flex material laminated in the skins there.But, I usually take a piece of 320 sand paper and turn the smooth side down, slip it bewteen the skins and the le of the ailerons and work it some to give clearance so they dotn rub and wear the paint off over time.

Trust me 20 deg is a lot of aileron throw on this airplane But I like it a little faster
The rudder Well ,that set up is not the Best But ,it don`t bother me much once it`s in the air.
You will never need more than 18 deg of throw either way on the elevators. My set up is 14 deg up and 18 deg down elev. max throw


Dick, you might contact the factory and see if the distributor has a new rod in stock as spare parts ,,I`m not sure where else to get one.

Bryan