TT mats

enginedr, I am inclined to go along with Chakster; I would dump the rubber mat.  But you have the luxury of choice and experimentation.  Try it with vs without the rubber.  Don't forget to change VTA accordingly.  I would be curious to know how that turns out.

I am not sure laying a rubber mat on top of a platter meets the true definition of CLD.  For CLD, I think disparate layers need to be held together by a force greater than gravity.  On the other hand, it's not hard to imagine that the floppy rubber on top of the metal does do something, for better or worse.  I keep the original rubber mat for my SP10 Mk3 just because it's correct and original to the TT, but I wouldn't think of actually using it.

As you may have read, I too use a Mat2 on my MK3, with no rubber in between.  There were a few who don't like the Mat2, which is their right of course.  I also do like the SAEC SS300 on the Mk3 and on my TT101.

The platter on the SP10MK 3 is way more massive . JP showed his to me .. The MK 2 can use a little help .  

Probably some of you might have seen it already, but intresting to see that cork mats where preffered at Fremmer,s listeng files shootout. Even over the Boston Mat. https://www.analogplanet.com/node/119603/results