Chris, I wish you had chimed in on the suspension vs. non-suspension thread. Probably would have saved me from butchering the subject. :-)
Granite rings like a bell: please explain, any data or proper observations on this?
It does. You can google and find lots of references. I tried granite as a shelf material under my table. The result was a smearing of the lower mid-range. So now I have Stillpoints under my table until I find a better solution.