Ralph (Atmasphere) ... I own a VPI Classic with a 10.5 inch uni-pivot wand. I use one rubber donut on the JMW arm AS thingy. I can't say that using that dribble of AS force makes much of a difference in sound playback.
The only reason I use the AS is because Peter Ledermann told me that the stylus on my Zephyr cartridge (my previous primary carty) was showing uneven wear. Peter suggested a little AS to even out the wear pattern.
My current primary cartridge is the Lyra Kleos, a truly wonderful performer. I still use the one donut, but again, not to tweak the sound, but rather to make a rough justice attempt to even out stylus wear.
Just an anecdotal experience FWIW for the benefit of fellow A'gon members.
The only reason I use the AS is because Peter Ledermann told me that the stylus on my Zephyr cartridge (my previous primary carty) was showing uneven wear. Peter suggested a little AS to even out the wear pattern.
My current primary cartridge is the Lyra Kleos, a truly wonderful performer. I still use the one donut, but again, not to tweak the sound, but rather to make a rough justice attempt to even out stylus wear.
Just an anecdotal experience FWIW for the benefit of fellow A'gon members.