Maybe you could point me to it, i don't see anyone other than snake oil merchnats purporting the theory, and only RA in the UK.

of course i may have missed it in my back catalogue, of TAS, Stereophile, HIFI+, HFWORLD, WHATHF, and all the other forums that i read but don't post on.

if it only exists in cable marketing from the big brands then i certainly will have missed it.

though i did notice Barry Fox saw fit to snipe at RA on pg71 on the latest HFN.