What I think is hilarious is your use of the word isoaltion, a word which you despise, at least up until you wrote the cryptic line, "I don't believe in absolute isolation." What I explained the cork does when used under circuit boards is to "isolate" the tiny electronics mounted on the circuit boards from vibration produced by the transformer. The cork does this by damping vibrations on the circuit board. I am just guessing here that the two technical courses you claim you took did not cover isolation and damping, am I right? And the use of cork under the transformer damps the vibration of the transformer, further isolating the rest of the chassis, including the circuit boards. So guess what? If you're having good luck with mu metal and cork i suggest you update your TuneLand Mission Statement to include isolation AND damping and get rid of the "all vibrations should be free to flow unimpeded" and "music is vibration" nonsense. As I have repeated ad infinitum I don't like the transformers in the box either, which is one reason I have gone to a transformer-less system. There are no transformers anywhere. Hel-loo!!
There is no real reason for you to be quite so argumentative. Calm down, everything is going to be OK.
"The only good vibration is a dead vibration." - Shannon Dickson in Stereophile 1996
Cheers,
Geoff Kait
Machina Dynamica