antiskate disc

Those videos are HERE but you will need to scroll down most of the page to get to the section in skating force. Each video is 5 minutes or less. 

Many thanks junebug.  I respect the knowledge of the folks at Wally Tools but was not aware of this recent series of videos.  It seems I've carried lots of incorrect information forward in my decades in this hobby. :^(

Thanks for the actual link, @junebug.  So much good stuff there.

Re: the sibilance/mistracking/tonearm issue, every one of my cartridges have suffered from excessive sibilance for many years.  But J.R., focusing instead on tonearm bearings, recommended to me the $2000 fixed-headshell Korf arm as a "budget reference" alternative to Kuzma-class models.  I installed one of these extraordinary tonearms last night per WAM’s procedures and, holy cow, for the first time, the level of sibilance and vocal distortion on my most challenging sibilance-test material (like Cat Stevens’s "But I Might Die Tonight") did not exceed that of Tidal’s remastered FLAC streams.  Jeez, I’d been listening to the wrong advice & chasing the wrong problem for years.

I realize that mileages vary, so here's what else was in the signal path: a George Merrill-built "GEM Dandy" Polytable Signature, DS Audio E3 optical cartridge & equalizer (no phonostage, of course), $19K T+A amp, Harbeth speakers, & decent four-figure cabling, with power supplied by an Audioquest Niagara conditioner & power cords. So not exactly Fremer-class XVX + Dartzeel, but still in a class with, I suspect, what many Audiogon users listen to.  On this system, the improvement in this area was dramatic, impossible to miss.