Originally Posted by ChuckA
My Evo doesn't have autotrim. The Micropro was the only transmitter I ever owned that had autortim and I didn't use it because I preferred to adjust the linkages to center the control surfaces with the trims set to zero. That way, I was able to use the same transmitter for all my models. I normally never have to make large trim changes unless there have been large temperature changes since the last time the model was flown.
If you had autotrim, you could use it on the first flight then reset the linkages to what autotrim set them to and keep your trim settings at zero.