I had been planning on manual controls in my cockpit; manual flaps and manual trim. I've been working on the elevator trim and the bottom line is that the standard lever arrangement (RV-4) just isn't working out - not much room available for an easily activated lever. My question is for people that have experience with the 3 variants for trim control: manual lever, manual vernier knob, and electric. I can see that I could more easily install a vernier knob, and of course I could easily install electric. On the other hand, I could probably make a manual lever work somehow/somewhere. Any sage advice out there ?? What is the easiest to fly ?? What maintains the best pilot feedback ?? What maintains the highest reliability ??