Originally Posted by Galand
When flying on my own, I would agree that it would be more fun to use the free channel for MOD.
But when training you will fly 2D anyway and the GAIN channel pot lets you "challenge" the student progressively. Therefore I wanted to assign the free channel to GAIN but then I lose the neat switch-flicking trim reset function.
BTW, I found that setting the initial trim calibration with the PC was quite challenging (in the end I used a spirit level) to achieve no control surface movement between Guardian ON and OFF.
Thinking about it, there are some very good reasons to set it up either way depending on the plane, transmitter, pilot, and objective.