Multiplex 4000 More Programming Questions
Ah, you made the deadly "error" of reversing a control instead of reversing the servos! Not a major problem as long as you remember to reverse the trims too, as you found out! I bet that flight was fun. I have my own rule of never ever never reverse the controls, I always set direction at the servo level. There's no reason not to reverse the controls as long as you know all the effects it has and consequently the rules to be followed to ensure that there are no unexpected effects. I find it just easier to leave it alone and work at the servo level.
To reverse the trim menu 1, controls, TRIM TRAV, select the number value with bottom right triangle button and press R. The number will go from + to -, or - to + and that reverses the trim effect.
H