BTW Roger, are you comparing your decision-making methods to those of Tesla's? You also "need a published document to substantiate your direction". That document is the NEC! You are not dreaming up your standing all on your own.
On another point, I didn't go in search of a document that would "substantiate" my "direction". Actually, I had always used the residential table to wire subpanels until I read on a forum that this was not code compliant. Only then did I search out an outside source (after repeated attempts to decipher the NEC myself). I had to change my "direction" after doing this research. Like I said before, I very much want to use table 310.15(B)(6) for subpanels so it's not like I set out to debunk my previous view.
