All that being said I would like to try a Tripoint unit someday, but they are a little costly,
ozzy
Innit😁
Took me a year to save up for the Tripoint...
Btw your focus on grounding wires is shared by the high end forums WBF and AudioExotics in the far east. Tripoint make some upgraded ground wires, as does Dalby Audio Design, even by WBF and AE standards they are eye- wateringly expensive; think 10 x the cost of the Entreq Ertha Atlantis. But users report that the ground wire is perhaps even more significant than the grounding box.