HHHm interesting that you bring up the mechanical vibration....Is that associated with internal vibrations as opposed to outside vibrations?

I ask because the PL-540 that i use, has an ,either, MDF or an HDF plinth.

But my Technics SL DQ3 has a plastic plinth which is hollow, where as the Pioneer is solid hence heavier than the technics.
Which would be better able to keep the needle isolated as much as possible from vibrations. Both internal and external.