Shortly after the original date for this thread, there was an early introduction to to Materials that can be used within the parameters of Audio Equipment, which have inherent properties that are seen to be very much wanted in relation to Dissipation and Damping of Transferred Energies.
Today the Materials referred to above, that are produced by a process where a Resin Impregnated Densified Wood is the end product and which are supplied as a Brand Name, such as, Permali or Panzerholz (but not limited to) are proving to be a material that enables a DD TT, and other drive TT's to raise the level of performance that can be produced.
I am very familiar with these material types used on DD TT's and utilised for other purposes and the perception of betterment from it being in use is audible.
For those looking to eek extra from their Vintage TT's, where the exchange of a Plinth is not too complex, I highly recommend the additional investment.
An individual does not have to go to a too great a expense to make this happen.