Originally Posted by
stlmstr
For example the elevator travel is set at: up 125% and down 2%. It works .
That is normally indicative of setting up your linkages incorrectly.
It may be that you did not center the servo arm with the TX before setting up your linkages. That results in grossly unequal travel as you have, and are correcting via the radio.
Set the transmitter to it's defaults, and adjust the arms and linkages so you get equal travel of the elevator without resorting to changes via your transmitter.