My point is of course you can construct absurd cases where some generic wire might win in a shoot out with a superior wire due to some contrived assemblage of variables. But those case can be thrown out. They’re outliers. You cannot put the genie back n the bottle. Not with cables and wire, not with fuses. Simply saying we can’t easily perform an AB test doesn’t actually mean your argument is valid. You cannot have your cake and eat it, too. One trusts wire directionality is one of your variables.Geoff, I wasn’t constructing any cases, absurd or otherwise. And I wasn’t addressing cables or fuses. My point in mentioning all of those variables was to convey the thought that the results provided by expensive in-wall wiring in comparison with Romex are (a)unlikely to have much if any predictability, and (b)are unlikely to have much if any consistency among different systems and installations.
Regards,
-- Al