A new way of adjusting anti skate!

@dover , The skating force you see on a blank disc is due to raw friction, as Lew understands it and the offset angle. The pull on the stylus is the result of friction plus the energy required to change directions which increases with groove velocity. That "pull" is the kinetic coefficient of friction in the equation above.

Mijostyn, I would take issue with a few of your points, but I will settle for this one as being the most egregious: "According to the equation the kinetic coefficient of friction changes with groove velocity"

Please show me that equation from a reputable source. As you are probably tired of reading, I have been saying over and over again that the friction force is independent of velocity, once the stylus is "moving". I only base this statement on every single physics reference I can find. So I need to see a reference to refute the notion. For all objects at rest, there is a quantity some call "stiction" or static friction, which is a way of saying that you need to put in a bit more energy than just enough to overcome friction, in order to get a body moving from rest. But otherwise, all is "kinetic". So there is no need to stipulate "kinetic".

On a separate note, I agree with MC that overhang does have a lot to do with the skating force, as it, combined with headshell offset angle, results in a constantly changing net Tracking Angle Error across the surface of the LP. Without the constant variation tracking angle error contributed by overhang, total TAE would be a constant, because the headshell offset angle is constant. Therefore, the skating force would be a constant, excepting the effect of groove tortuosity. Even at the putative two null points that can be achieved with an overhung tonearm with headshell offset, there is still some skating force. THAT skating force IS due only to the headshell offset angle, for those two instances in time. Underhung tonearms (which never are built with headshell offset angle, in my experience) do give zero skating force at the single null point available with such a tonearm, thanks to the absence of headshell offset angle. At the null point, underhung tonearms behave just like a SL tracker.

My experience is that anti-skate depends from the cart used. Those

with low compliance will need anti-skate those with high compliance

will not. I don't use anti skate with carts which can reach 60 microns

tracking ability test. 

 I don't use anti skate with carts which can reach 60 microns

tracking ability test. 

Perhaps you could save money by asking a retipper to turn the old stylus around so you can wear the other side out before you put a new one in.

@lewm ,  whether you like it or not lewm the skating force increases with groove modulation which is synonymous with groove velocity. I have explained it as best I can to get it through your stubborn countenance. Maybe AJ Conti can do a better job.   https://www.basisaudio.com/ajs-discussion-of-antiskate-forces/  You continually want to mistake groove velocity for linear speed. They are two very separate granted loosely related issues. There are only two coefficient of friction figures for any pair of materials, static and kinetic. The static coefficient of friction is related to the two materials in contact at rest which includes the "stiction" factor. The kinetic coefficient of friction is related to the two materials in motion which is the situation we are dealing with. The kinetic coefficient of friction does not change with linear velocity or what you would have playing a blank record, but it increases with increasing groove modulation which is synonymous with groove velocity. You object to the term groove velocity because it includes the word "velocity." When you see the term "groove velocity" just substitute groove modulation and I think you will be just fine. If not you can object until you are blue in the face but it won't get you anywhere except maybe a visit to the ER and I certainly do not want that so please do not stop breathing. We like having you around to argue with.    

@nandric , while the skating force might change a tiny bit with stylus profile, other than the prescribed VTF the cartridge has nothing to do with the skating force.