I had bad luck with Hitec. The Eclipes 7 and I did not get along at all.
I went to Futaba and have not looked back.

I like to make a shield out of aluminum foil and place it in line-of-sight between the
EI set up and the receiver.

I have not had any trouble since I switched?

On your glow planes, were you getting "HIT" or raido interference?