Thank you for your inquiry!
Judging whether the anti-skate is working or not by observing what the tonearm is doing in the floating position, is an inaccurate way to measure anti-skate. Anti-skate works only when the stylus/needle is making contact on a vinyl record. The standard recommendation is to match the anti-skate to the vertical tracking force used, provided that the tonearm is calibrated properly (properly balanced). So, if you’re tracking accurately at 2g, then the Anti-Skate should be set to 2. However, THE only legitimate way to accurately measure whether the anti-skate is working or not is by using an LP Test Record (such as the one found here: http://www.needledoctor.com/Cardas-...
) that features blank plateaus/sections.
If you have any further questions or for any correspondence, please contact the Audio-Technica United States (ATUS) Audio Solutions Team and include your original question and this response, at: