I used a DIY spotmat on each table and like it very much.
For help with that go here: the Analog Dept
I recently bought a funk firm Achromat which beat the spotmat by a few points but that mat was about $100. Spotmat cost about $5 to make. You could actually just get those stick on cork dots at ACE hardware and apply them to the top surface of the glass platter. Don;t like it, peel 'em off. cleans up easy.
For help with that go here: the Analog Dept
I recently bought a funk firm Achromat which beat the spotmat by a few points but that mat was about $100. Spotmat cost about $5 to make. You could actually just get those stick on cork dots at ACE hardware and apply them to the top surface of the glass platter. Don;t like it, peel 'em off. cleans up easy.