Ian, there is approximately 12 square inches or so of carbon fiber in the isobar, and a bit more in the Eurofighter. These are the first airplanes I've built with Carbon Fiber in them, but routing the ant. anywhere even straight forward, or simply moving a receiver towards the oustide of the airplane causes jitters.

I don't think it has to do with carbon fiber, but who knows. I know other Isobars have flown no issues with more CF than I have in mine, I know other Eurofighters have flown with Merlin's in them. So I don't think it can be that. I kind of feel like it is something I am doing wrong, but I've built somewhere towards 7 seven turbine jets now and never had one glitch. So I'm just stumped.