[Scott Dorsey]

geoff wrote:
The difference in vertical tracing angle with differingthickness between
'normal' and heavier pressings is insignificant in comparison to the
thickness of a whole extra (or more) disc.

True enough. It should be pointed out also that a lot of older pressings
weren't actually cut at 15 degrees on the mark so you may find that you need
to raise and lower the tonearm bearing point (which is adjustable on quality
tonearms) while listening to the separation or watching on the phase scope.
--scott
--
"C'est un Nagra. C'est suisse, et tres, tres precis."