Just getting into gassers myself and have been using an Eclipse 7 with all Hitec gear onboard. The plane hasn't flown much (8 flights) and I recently broke the magneto off my engine, which has delayed further flights.

PPM Supreme RX used for inital flights and notice no particular problems. Mind you this was in fairly windy weather. On a calm day I noticed one or two minor glitches in a area of sky known for problems. Having ruled out any interference issues, hence the test flights using PPM, I switched over to a QPCM Supreme with failsafe set. Only two short flights with this setup and not a single glitch noted.

Obviously more testing is required, once I fix the engine.

Just for your info: Engine was a Homelite 25cc with standard magneto ignition. Receiver was at least 18 inches back from flywheel. The only shielding I did was to add some ferrite rings to the servo leads, just in case some stray signals came in through there.

The Spectra module should be fine, if there's going to be an issue it will be with interference to the receiver.

Oh, see my gallery for pics of this aircraft. Ugly but she flies. Need to tweak that guessed at airfoil to make it fly a little better, she's a heavyweight at 16+ pounds....