looking for best isolation platform for CD player

Symposium Rollerblocks + Svelte platform gives a vast sonical improvement

Proy- Since you've already considered Sistrum for your amp, why not consider them for your other electronics? They are very effective. However, isolation isn't their design goal, but rather high efficiency coupling to ground. The best isolation plate I've found for CD transports is made by Precision A/V in Moorpark, CA, but it is very expensive.
Good luck.

Noticed improvement after replacing Atlantis stock spikes w/ Polycrystal (large) spk. cones. Noticed a bigger improvement after replacing the stock shelf w/ a Neuance shelf. Ejlif,(a guy who has tried alot of stuff) recommends and uses a Vibraplane. These are used in electron microscopy where good isolation from vibration is a MUST. Vibraplanes are NOT cheap so unfortunately I can't speak from experience about them. Good on ya' for aiming high.

I use non resonant, Caribbean Moca wood and Goldmund cones under my 23 lb Parasound belt driven transport. Soundstage and clarity improved when the Moca wood board was added. Moca is simply awesonme...