Sherod,
I was given this tip form Ted at SR-when I replaced the ceramic risers first with CD cases and then with wood risers it cleared up my systems mid range while tightened up the low frequencies and opening up the top end making everything sound clear, smooth and transparent. The bottom line-it was not subtle so I suggest you give it a try for yourself. Compare raised with non conductive elevators (CD cases with the CD's removed) and again with the ceramic risers if you have them. In my system is was not subtle with SR Tesla speaker cables. It's an easy experiment.
Fplanner,
If you can find a way to make the VD cables work, I'm sure there is a solution that will allow you to use cable risers. It's worth a listen at the very least.