I just saw that you can map the Elevator trim to an axis on your joystick. Thing is it doesn't seem to work for me! It's recognized by the game, because I go into assignments and set the axis. But moving the axis does not seem to change the elevator trim. I've got the whole CH rig.
Anyone else using trim as an axis? Does it work? It would be nice to use an additional axis for trim instead of buttons for up/down.