Alternative platters ?

[Marco]

I wouldn't expect a customer to choose on the basis of measurement but I would expect a designer to use measurement, together with subjective evaluation.

I'm certain that's exactly what Arthur does, Mark. What he's saying, however, is that (like me), measurement is never the final arbiter: his ears and 30-years experience as an audio equipment designer are (although in my case, said experience refers merely to my humble status as an audio enthusiast)...

Marco.