ORIGINAL: MHawker
Personally, I don't like exponential. I do have dual rates, but I like very sensitive sticks. It's easier for me to fly knowing the surfaces will move the same relative to stick movement.
Actually, the best reason to use expo is because without it, control surfaces are more sensitive around the midpoint than the endpoints. The reason is because the pushrod to servo connection travels in a circle rather than a straight line. A little expo (15-20%) will make the movement of the control suface smoother across the entire range without being 'sluggish' around the midpoint.
irussel