LOL; I saw in one of the Slant SixDan quotes that someone “sooner or later would mention MAD Electrical”. I guess I’m that guy. I was impressed with their site and didn’t know any better.
Does the mad approach work, yes it does. Are there other ways to skin a cat, certainly.
I build those charge wires and never use OEM 10ga wire as Mad suggest. Minimum sizing is 8ga. Dan's approach of 2 10 ga wires is equivalent to a single 6ga wire. Larger wire, better transfer, less voltage drop across the line.