Mijostyn, "The background noise on even the best pressing is a lot higher than any reasonable modern belt driven turntable so in reality a solution in search of a problem."
Do you think that bearing noise is irrelevant? If so, I assure you that it is not. Just listen to an air bearing TT with air in all three dimensions.
As Glen said, what about stability? What fixes the record with respect to the stylus? Does the platter wobble when the stylus is dropped? Horizontally? Vertically? Got to suspect it does, at least somewhat, and the effect is audible.
Do you think that bearing noise is irrelevant? If so, I assure you that it is not. Just listen to an air bearing TT with air in all three dimensions.
As Glen said, what about stability? What fixes the record with respect to the stylus? Does the platter wobble when the stylus is dropped? Horizontally? Vertically? Got to suspect it does, at least somewhat, and the effect is audible.