Okay I know I may have stepped beyond the pale in many persons' eyes, but I believe that isolation products can make a difference when one gets to the point that they have a system as revealing as a Decware based system.
Realistically I think it's part tuning and part isolation as total isolation is probably impossible to achieve. I've been experimenting over the years wtih home-made and store bought items and there is definitely a difference between components on a basic or crappy stand of some sort, components on a great stand, and components on a great stand also with individual isolation or coupling items.
This can be maddeningly time-consuming and mind-bending to an extent that tube-rolling and I suppose room treatment can be. I would in fact compare the results in many ways to tube-rolling as far as level and nature of sonic changes. And I've driven myself a little nuts now and then pursuing this end. But then I've also astonished myself at how for instance just changing the type of ball in use with one of Herbie Audio Labs "IsoCups" can alter the sonic signature.
So this brings me to a question: has anyone here any experience with magnetic isolation items? I know Clearaudio makes several types and there is also a component I only see available from Britain called NoSpikes that are offered (a bit cheaper than the Clearaudio versions). I haven't really found much info or user comments on these on the web and so wouldn't be surprised if there's little to be gained here, but I'm interested, and when I next have audio dollars I might try one out. . . but I'd rather hear a bit first. Share if you can.
And if you think I'm nuts to think isolation/coupling amounts to a hill of beans, well you may be right, feel free to tell me that, but I'll not bother to defend my viewpoint.

I've managed to convince myself, and others' ears have also admitted hearing differnces.