All of this platter speed stability (most important in my opinion) and accuracy counts for what when playing an LP that is less than perfectly centred? I would imagine that an LP which is off-centre by even a fraction of a millimetre (which would be many of them) would result in greater pitch instability than any belt driven or direct drive turntable methodology, no matter how well engineered and implemented. Among modern turntables we have engineering solutions that provide some very good answers but sometimes I wonder if we are really asking the right questions. Food for thought.
Aaron
Aaron