John, the slate is said to have natural CLD like properties, as layers of different sediment make up the slate itself, each layer itself differing slightly in composition, density, etc. Apparently slate has excellent damping properties because of it's makeup, and will not 'ring' like a crystalline rock will (granite, marble, etc) I just look at slate as a CLD on top of the CLD so to speak! And I can confirm that no bass is being drained whatsoever as I listen now to the 200g pressing of Pictures at an Exhibition"..... Wow!
I will once again dismantle this little beastie, and clean, lube, reassemble the bearing, motor and idler wheel, before locking it all down for another week of listening..