I want to clarify/correct my statement. The change in output for a given change in input does not literally define resolution. Resolution is the ability to distinguish the smallest difference in two values. In the case of our servos, a servo that wouldn't change its output until it saw a 1.0 microsecond change in input pulse width wouldn't have as good resolution as one that would move with a .5 μsec change in input. Yet both could have the same change in output rotation for a large change in input pulse width.

In my discussion in post #4 above I assumed the servo resolution was better than required to detect the smallest change in pulse width coming out of the receiver. So, you can't change the resolution of the servo but you want a servo who's resolution can detect the smallest change in pulse width coming out of the receiver. Programming the servo throw doesn't change the servo resolution either but it does allow you to change output rotation for a given change in input pulse width. So if you were getting the desired throw with end points at 40% you could program the servo to give you the desired throw using end points at 100% and improve the SYSTEM resolution. In other words you would get more steps (finer) with with the 100% setting.

Jim O