When I want to have my attitude at 5 degrees nose down pitch, and set power for level flight, as I accelerate the helo wants to pitch up again. Thats correct behavior, but it gets tiring on the arm to always have to maintain constant stick forward pressure on my joystick (TM HOTAS Warthog) to maintain S/L flight.
So I'd like to suggest the addition of cyclic trim, as well as at least elevator trim for fixed wing aircraft as well. I don't want DCS level of accuracy either, only improved ergonomics with the benefit of increased realism.
It would also help communication, because a helo pilot in MP could then at least type while straight/level without having to worry as much about his chopper coming off course. That is, if he doesn't use VOIP for some reason.