I noticed a lot of flyers on other sites use ferrite rings on their esc controllers in addition to glitch reducers to cancel the effects from the motor and esc noise. I ordered this one from FXaeromodels. Most electronic products have some kind of inductor up front in the circuit so it should help out. Also the glitch reducer from HeliHobby....the manufacturer doesn't recommend using on digital servos from what I hear.

http://www.fxaeromodels.com/product_...roducts_id=380