Five years later...in case I didn't mention it before, the Stillpoints - at least the Ultra Mini Risers - must be moved around underneath the device to find the spot where they suppress resonances best. And that is not always the four corners of your component. I suggest you move them one at a time. When you get improvement on one riser, leave it alone and go to the next one.
TAS had an article two years ago, done in what I thought was a very scientific method: the writers moved the location of all the various footers (Stillpoints, Nordost and others) and were surprised to find that the location of the footers contributed greatly to the sonics. So did Roy Gregory when he reviewed them. Don't just throw them under the corners of components and think you've mastered their sound. You haven't even begun the long hours of finding the "sweet spot," as the authors found out.
TAS had an article two years ago, done in what I thought was a very scientific method: the writers moved the location of all the various footers (Stillpoints, Nordost and others) and were surprised to find that the location of the footers contributed greatly to the sonics. So did Roy Gregory when he reviewed them. Don't just throw them under the corners of components and think you've mastered their sound. You haven't even begun the long hours of finding the "sweet spot," as the authors found out.