You could also use one of these to save a few channels:

http://www.electrodynam.com/rc/EDR-125/index.shtml


Combines mixing down elevator to brakes and rudder to steering. Also centers the nose gear before retraction and locks the steering servo in center when flying to prevent pull-pull cables getting tangled. Prevents accidental gear up command when you turn everything on as well.

Lewis Patton has one in his Century Jets F-18 that he has been flying all year.

-Randy