we all have questions in this field from time to time and do appreciate answeres I'm not by myself.

I'm with you wayne, and I have to tell you that I feel like I have more questions than answers. If I have learned anything, it is this, questions keep us all "sharp", and nothing teaches me more about the NEC than "running down" code references. We used to have some heated debates in the "master's study courses" that I went through, but I would always come home, break open my code book, and learn something new.