Well, here's my "theory" on what's happening with my buddy's illegally tuned TX...

What I know so far...

1) We both flew cheap single conversion RXs
2) My RX had little to no glitching when I didn't fly near his TX
3) My RX had severe glitching when I flew near his TX
4) His RX had no glitching when he flew near my TX
5) I've flown dual conversion RXs near his TX with no glitching

I suspect that he has enough leakage into adjacent channels with his illegally tuned TX to screw up the cheap single conversion RXs, but the dual conversion RXs can reject this well enough not to glitch. His cheap single conversion RX doesn't glitch near my TX because I have a factory tuned Futaba module without any adjacent channel leakage.

If I still get the same glitching while flying with him after I switch to an Electron 6 RX, I'll definitely give him some grief about it... he's very good friend and flying buddy, so things will get resolved peacefully...