Hey Mike, I don't want ya to feel like the Lone Stranger, but I have been tearing my hair out over my Electro Dynamics glow driver on my 160. I went the whole route with their complete system and have been burning plugs with it working sometimes and other times not. We should get together and smash em!! Although right now it's been working fine for the last 4 or 5 flights.
Have you talked to the people at ST? I haven't called ED yet to complain. My problems might have been the fuel I was using. It was Wildcat 20% and I switched to Cool Power 30% heli.
Your problem with jitters sounds like an electronic problem with the control box. Probably have a bad unit. I'm sure they would send you another one to try.

Good luck with it, Mark