Kjay;
Yes, you are right, that was & still is the OPs question.
I copied & pasted the commentary from the '08 Handbook, noted that it is not verbatum Code in my original reply to George. Greg followed with his response of 210.52 (B) (1).
Some of the other replies were opinions, and delved into design commentary.
Perhaps, I should use the phrase 'standard trade practice'
And lastly, I appologize for not directly answering your ?? regarding 210.23(A)2); Yes, that precludes some of the DWs and perhaps some of the GDs.
