RE: glitches
Hey,
Not that I have had any experience with planes, but with my RC car, it used to glitch, but as soon as I turned the engine on, and ran it away from the controller a little bit. it would stop glitching. As the other guys have said, the more "noise" on that frequency, the more that the receiver is going to make the servos glitch, but if your controller is the major 'noise' at that frequency, then it shouldn't glitch.
Cheers