This is kind of what the Richard Gray Power company devices do, and its also been documented in the Audio Asylum. Having tried it, I feel it completely CHOKES the dynamics of my system.
In my opinion, balanced AC conditioning is the best way to go, although not the cheapest. The recent introduction of the Majibuss is also something that I have tried in my system (although not DIY) and it is an excellent filtration device as well, devoid of chokes, etc...using only passive parallel filtration.
I for one am a little hesitant on the tweaks that Morrow describes. If you look at what he says about room treatment you will see there is a lot of MISINFORMATION printed. I had this independently verified by one of our Audiocircle manufacturers of room treatment whom I consider an authority given the amount of repeatable published data his company has shown.
Best,
Anand.