To Almarg, The 4th paragraph of your response is what I have generally read in various audio magazine including the out of print Stereo Review The order of my turntables has been Garrand SL95B, Thorens 160( actually borrowed from a friend while my Benjamin-Miracord TT sat in a service shop for three months) Sonograph turntable, VPI Junior, Rega 3-24, Project DC Carbon, and currently a refurbished Thorens TD-145
To my best recollection, only the Garrand SL95B and possibly the B. Miracord employed "hook, line and sinker" anti-skating device For the record, both Thorens indicated above did not use this type of anti-skating. The Thorens anti-skating is simple, but also seems like a toy. You crank a dial on the tonearm to match the tracking force. In addition, it has a scale of elliptical and conical stylus , and a scale should you play your LP after using a liquid cleaner. According to a Thorens tech was the method used in Europe, (possibly only Thorens)
The Rega P3-24 despite its excellent tonearm also employed an anti -skating device that was set by moving to the prescribed setting represented by a series of notches which their inadequate manual illustrated There was a small dial to move to the prescribed notch. I hope Rega has no plans of getting into the drone missile business. It appeared to me a primitive and imprecise device, regardless of what side of the anti-skating argument you are on. I don't recall if it was called "magnetic" in the ads or manual
In the August 2016 issue of Stereophile, there is a full sheet ad on page-46 for Project's "upgraded" RPM3 in "fire engine red" The ad lists in bullet points its improved featrues including "magnetic anti-skating mechanism" which is carried forth on the RPM 5 and the RPM-9 tables; The (discontinued) Project 1bXpression clearly shows the fishline and sinker anti-skating, but not the new Project 2BXperience SE. The (discontinued) Music Hall 5.1 table has the device, and also the Music Hall "Ikura" table.
It appears that some TT manufacture employ a magnetic anti-skating mechanism to its higher end tables, but this is not necessarily consistent as can be seen on the MH 5.1, and possibly their new MH 5.3 table.
Marantz 15 S1 table, and Clearaudio Concept TT do not use the fishline etc etc. Quite an audio conundrum!!! Thanks , Jim