Thanks for all of that info. I do know about the capacitors, and have installed those. And I started with all the wires twisted. It has made a huge difference, but am still getting the glitching with the servos. I'm sure others will benefit from this info.
THe antenna wire does run past a positive buss terminal I've set up in the hull. Instead of running umpteen number of wires all to the battery terminal, I set up a brass buss with a screw and nut for both the positive and negative leads. The positive is on the side the antenna goes down, and the negative is on the other side of the hull. Could this arrangement be causing me trouble too?
What I didn't know about was the solenoid diode. Can you tell me what size or description of diode I should get, and where exactly to mount it? I've attached a schematic drawing of the valve I am using.
So basically all these parts you list, motor casings, gear box casing, any shields around the servos, need to be grounded? Is it ok to run the ground wires to the same negative lead that comes into my WTC that the motor is connected to? Or does it have to be it's own separate wire going straight to the battery?
Oh, any idea where to get copper tape?
Thanks for the gear lead Subculture. Are you Andrew?