Folkfreak,
The last thing I wanted to do was crawl behind the equipment again and do all this stuff but after I changed out the duplex outlet and got the gains in resolution that I got, application did not seem so bad.
As as per the isolation vs power cleanup, I can only tell you about a story involving Still points. I had just gotten the Audience the Ones V2, in the office, and the 1+1 V2+ in the main system. All was fine, but I thought it could use further resolution, so I got four boxes of stillpoint minis, for a week and half long trial from my dealer/friend to float the speakers As per the stillpoint hierarchy.
Within 4 days I removed them from both systems since I got an ear ache after listening to both systems almost immediately. My dealer had never encountered this in his many years of experience. At that time I asked if I could try out an Audience power cable for a couple of days and it was a substantial improvement, at the time. To make a long story short, the the power got cleaner, over about a year of cable replacements. The stillpoints came back using their hierarchy. They are finally under all components of both systems and no ear aches.
This might be the reason that the TC treatments have made such a profound effect in my system. I’m glad I took the plung.
I hope this this helps some,
rc