Choice of Wire for Dedicated Line

Redkiwi:
You raise several points that I do not recall having seen in previous threads, or that..speaking for myself..I would like to hear you elaborate upon....
..having dedicated lines will accentuate the differences between stock and good PCs
..Romex is VERY directional
..your experience with and selection of grounding arrangements
Thank You

Redkiwi:
Thank You!, for your response to my query. Your experience is greater than mine, but....I am just getting to the point at which I was beginning to wonder about the characteristics you describe as "brighter and with a coarser grain". I have made too many changes (in the midst of a house remodel) to be sure, but your words strike me as having the distinct ring of truth.

Your methodology of testing Romex makes perfect sense. I will definitely be using your method.

I can understand your remarks about grounds. I had not considered the issues of the voltage variation, but I can easily understand why you would find differences. For myself, I have found the greatest success with dedicated circuits coupled with true isolated grounds, seperated from the remainder of the household circuits. I understand the issues of potential ground differential, but I have placed the rods in close proximity, and have done my best to create identical parallel systems.