Thanks for the insight Rick. In response I would like to share the following 2 points:
1) I'm not quite sure of what you mean by "lack of emphasis the Part 11 section sees etc.". If I'm reading it correctly, you may find it interesting to know that the inspector who ran the Master's course, that I attended in the fall of 2006, had to get clarification from his superior before he was able to explain to the class what exactly Section 11 was. I understand that he has been an inspector for quite some time and I thought he was pretty competent. Every day we learn something new.
2)I personaly see nothing wrong with the mechanics of having 2 conductors under one terminal clamp (like a breaker has) if it is done with care. I don't do it simply because I've always been told that the code doesn't allow it. I also would not agree with having common conductors doubled up. Having made my statement about the mechanics of it, I would like to know why you think that the ruling should also pertain to non current carying conductors (ground wires I assume?). I think it's wrong enough that it pertains to the hot conductors as it is. There surely must be some good reason I suppose.
I look forward to your reply.