My current plane has short all steel rods and I have to do some drastic trimming now and then myself. I've built and killed two 4*60s, one with golden rods and one with the stock rods that came with the kit. Triming was almost unheard of with those two. So, I'm not sure that there is a silver bullet for trim free operation.

I would be tempted to build the aileron servos (plural) into the wings like the 4*60 has. If you have a TX with mix capabilities, it gives you a much better trim setup on the ailerons. In fact, I have a first generation Quicke 500 that I took the single servo out of the wing and put two mini servos in it place. It worked well until I discovered the hard way one day that with the throttle cut, the left aileron was hitting the throttle linkage and I had no down aileron on the left side at full idle. I dead sticked and cut the throttle to keep any junk out of the engine if I crashed. I found I couldn't make the final turn to the runway and watched it float over the hill and out of site. Minor damage. I'm going to build the servos in the wing on the rebuild now.

Don