Gordon,
"the uBitx is mounted on a PLASTIC upturned Dollar Tree desk organizer"
Well it looks good, anyway. I'm a fan of dollar tree stuff myself.
I have to take the long path and build a SA first, then I'll try the heavy metal and straps approach on my uBITX. Even if it improves things, it may or may not be enough. Then I'm going to see if the 15V suggestion actually improves the TX chain gain, without making a bunch of mods to improve the gain running at lower voltages, like 12v. And make sure it is a good solution, not one that leads to overdriving things and creating more spurious emissions. (I'll put a 9v regulator on my audio amplifier IC, before I go cranking up the voltage to the whole uBITX).?
I like the added relays approach, it should work. It is one of the simpler and doable solutions offered on these forums.
Tom, wb6b