I got another couple of 1m Cabledyne power cords to try on components. This was direct against the Vishnu's and Brahma.
On my Oppo I preferred the Cabledyne by a leap. On the Dussun amplifier the Brahma and Cabledyne were not that far away from each other, with quite a different tonality and sonic perspective. I still preferred the CableDyne and my system has never sounded better in regards to all the power cables I have been through. There is just more detail but less harshness and 'digitalness'. At $140 for 1m these are a steal.
In fairness to Nordost, the Vishnu and the Brahma were released in 2003 and have been superceded, so I am open to trying a Frey 2 AC cable and see how it goes.