You got it Sherod!
My own little pet theory (for what it's worth) is that I think because the Virtual cords address the problems of parasitic mechanical vibrations (there's a mouth full!), by utilizing some kind of "dampening" compound/material in the construction, they work best with that PRODUCES these type of unwanted effects -- ie. big amps, power conditioners, etc. Anything with buzzing, transformers.
Again, at least this has been my experience with the Virtual stuff. I still prefer my Acoustic Zen "Tsunami"'s on my front end gear.
Like you said, it's whatever "floats your music boat".
Either way, it's pretty amazing the way Rick's cords have taken us crazy band of 'philes by storm, don't you think?