I prefer to use AS on my VPI JMW-10 arms since it provides consistent sound from both channels in heavily modulated sections, especially the last tracks of a side. I find I need much more corrective weight than provided by the light rubber donuts.
That said, it's hard to argue with physics. The force vector which causes the arm to slide inward on a blank area and to reduce pressure on the outside groove wall is manifested at the tip. Static analysis means that the imbalance only exists at the tip. Unfortunately, the corrective force is applied at the arm which is projected through the arm, cartridge, and then cantilever bearing or pivot, as an outward force balancing the force vector at the stylus tip. The result is a nominally neutral force at the tip but an imbalance at the cantilever pivot point. This force may be sufficient to deflect the cantilever relative to the cartridge.
The ultimate solution is to use a linear or tangential arm for which anti-skating isn't an issue since they have no perpendicular force vector generated by an offset angle.
