Under the cd player I highly recommend the BDR Source shelf with BDR cones above and below as outlined by BDR. I found the Still Points with Risers work best with my tube pre, inverted and resting in BDR big Pucks. You really have to experiment.
Still point risers or Racing cones?
I have Black Diamond racing cones under my amp, pre and cd player. Just wondering if the Still point risers would provide better isolation under my pre and cd player?