It is a good idea when you get your 9C programed to do what you want, the make sure flipping a switch or bumping a slider doesn't effect it. Ihad a plane start going really wacky in the air one day, I barely got it down and when Idid, I noticed both ailerons were about 5 to 10 degrees up. I had setup flaperons and a slider on the right side was the flap part of the setup, but it was reversed. I kept bumping that slider as Iwas flying and adding a little more negative flaps with each bump. When I do some programing now, I go through and slide every slider, transfer every switch and turn every knob to make sure is does what I want and only what Iwant. It take time and it isn't much fun, but it takes less time and is more fun than rebuilding a crash.

Don