Look, Sir. You can choose to believe whatever the hell you want to believe. BOTTOM LINE: I've been in this business for over three (3) Decades [In and out of the military] and I KNOW what the hell I'm talking about. You're NOT QUALIFIED to even make such FLAT STATEMENTS you're making. IF you don't even know what Longitudinal and Metallic currents are, YOU ARE NOT QUALIFIED TO COMMENT.
I thought you were full of crap, too, but after reading your explanation above I see you are just using obscure terminology. The more generally accepted terminology is "common mode current" for what you are calling "longitudinal current" and "normal-" or "differential-mode current for "metallic current."
BTW, I'm none too pleased with the direction ZEN is taking these days, too, so thanks for speaking up.