Dedicated line w/ upgraded parts or power cond?

Mental, perhaps i have used the wrong electricians in the past, but none seemed to understand looking for the quieter leg, any notion of keeping the polarity consistent, the use of additional grounding, potential grounding differences among different dedicated lines, or even the use of higher hospital grade outlets. Though I'm sure all of those things are within the skill set and knowledge base of competent electrical engineers and electricians for clean power, most residential electricians don't seem to have this knowledge. Thus, my observation, based on my experience.
And when you say 'isolated' ground, my understanding is that code does not permit an isolated ground in the sense that it is separate from the ground for the rest of the service delivered to a residence. I gather that having a separate building, with separate service, may enable me to do so, which is something I plan on exploring in my new location, having already touched base with the city inspector here in Austin about the use of the large Equi=Tech to supply system power in my next room. For what it's worth, I'm also interested in finding electricians here with experience in installing such balanced power systems, but that's another story.

Mental - I'm with Whart on this one - electricians of your calibre, who gained extensive knowledge via the industrial/shipyard fields, have been exposed to a much broader experience than Joe-Bloe household electrician.

I worked on 3-phase switchgear design and assembly for a while and my knowledge was totally different to friends in the electronics field

Your experience on the shipyard probably taught you a lot abour the more subtle intricacies of power due the the higher-tech equipment used and the need for a much more stable and balanced power supply throughout the ship.

To someone like yourself, it is second nature, but for those that only came through the housing industry - they may be less informed and those are the people you find via "yellow pages"

So yes, you should be able to sort the wheat from the chaf IF you know what to look for, but many don't.

I don't think for a minute Whart was painting all "lecies" with the same brush - he just had a hard time finding a good one.

Dedicated line, 1st.