Maplenoll platter stability question

Thanks, again, for your helpful comments, Oilman. I also have the Ariande Signature so the base seems to be a "sandwich" of lead and synthetic countertop material. The long threaded screws seem to only thread so far into the lower platter plate, but I'll heed your recommendations. I cleaned up the thin washers that go underneath the rubber grommets they were stained pretty heavily. Then I'll touch up the black paint above and below the platter support surfaces.
I agree the platter air bearing surfaces should be cleaned only, the material seems already nice and smooth and most importantly flat. I've read about adding another bearing opening to produce a more even lift, but I don't feel I want to tackle that.
I've pretty much done all of the other cosmetic things I wanted to do. Now all that's left is the tonearm rewire, measure the total tonearm moving mass and put it back together and run a few tests.
Cheers!

Some designs do have multiple air ports on the bearing plate but since this design has the air port in middle (not quite center though) adding a second port does not impact the balance as the air pressure is developed in this section and lifts the platter evenly. If the air port was actually on the bearing surface, then you would need several. On the air spindle, it is actually set up with multiple orifices that introduce the air to the spindle. This is to exert an equal pressure on all side of the spindle to get it to float. That is why its critical to keep the pressure high to the arm relative to the platter

Ah, the Maplenoll magic is back! Everything is setup and working beautifully. I have a few more minor things to do, but what great sound this table can produce! Thanks for your generous help, Oilman.

Thanks for the feedback. Glad the pin suggestion helped. As you said, a magical table