No it's not a daily affair Pete, but any good tradesman respects the theory of his trade.
Myself, I don't feel the theory of electrical arcs is rocket science , yet if one reads the 2013 annual revision cycle ,it's fairly obvious many 210.12 rop's are theory based
Imho, what i'm reading for panel substantiation should be in return ,yet they sorely lack 'theory substance'
This then lowers the bar for us all ,i have not read the latest go-round , but it seems a shame that these folks forwarded valid concerns met with blow off replies.
~RJ~