HH4, sorry if this is a highjack.
I have the graphite Boston Audio mat (actually called a Mat 1). It is my belief that different mats will perform much differently depending on the platter compostion. On my Spacedeck, I did not like a felt mat or a sorbothane mat at all (though others with different tables swear by them). OTOH, I very much liked the Mat 1, even over a Mystic Mat which is abour 1/3 more expensive.
I have the graphite Boston Audio mat (actually called a Mat 1). It is my belief that different mats will perform much differently depending on the platter compostion. On my Spacedeck, I did not like a felt mat or a sorbothane mat at all (though others with different tables swear by them). OTOH, I very much liked the Mat 1, even over a Mystic Mat which is abour 1/3 more expensive.