Just for what its worth, I have not been following this thread to closely and suspect your radio system is 72 and that's fine. But I do want to point out if your system is 2.4 cocooning the receiver in a foam blanket is a bad idea. 2.4 receivers and most brands seem to be more sensitive to heat than the old AF,FM and PCM's and wrapping them in all that heat insulation has caused failures.

This is even more important if you live in areas that can easily exceed a hundred degrees. Hitec for example always in the past included providing a foam blanket to wrap their receivers in but when the changeover occurred they immediately dropped that practice and made vague implications to mount receivers in the open air. This happened when another well known brand started having heat problems.

I would suggest a normal mounting system and what I practiced before the changeover is to carefully CA some Velcro to the bottom of the Rx then ca the other part of the Velcro wherever convenient inside the airframe thus allowing full ventilation for the receiver.

John