Thanks for replies.
XJET- it really seems like you know your stuff! although i am only a layman with respect to ppm/pcm tech. We really need help to pin the source and get somebody to admit something is wrong here, how can i back this up? We dont want our planes replaced, just dont want to lose anymore !
SMOOTHPASS- "ditto" This is exactly what we are experiencing. To this day my old trusty focus 4 outdoes range check on Eclipse every time!

I am getting about 40 paces "thumb high" range check, even taxiing entire runway to no avail once airborne. We do have a "corridor of death" as such were you can expect the occasional hit flying in or out of the "corridor".
Wonder if there is some sort of interference specific to hitec and not others.?
I really dont want to just go out and buy a JR or FUTABA, none of us would be comfortable with selling our "problem" to somebody else. I like to think i sleep well at night.
thank you