RB300 anti-skating problem never quite ?

I'm not sure I understand what you are saying, but assume that your observations are made based on the settings and the movement of the arm without the stylus being set in the groove. Is that correct?

If so, consider that anti-skating works in conjunction with the stylus tracking force. The greater the tracking force the greater the anti-skating force should be.

.you can see mi ask here:

http://youtube.com/watch?v=JGpCA-zUZ7Y
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This is taken from a recent technical paper in The Vinyl Engine members area...."From discussions on web forums it becomes evident that some people think that skating force is zero when the tracking error is equal to zero, as it is the case in the null points. This is true only for linear tracking arms, for pivoted arms this simply not correct. As long as the line connecting the stylus tip to the arm pivot is not tangential to the groove at the contact point, which is always the case for pivoted arms, a skating force is generated. For that very reason tangential pivoted arms like the Garrard Zero and the Thales still have anti-skating mechanisms." Klaus Rampellman.Obviously Rega thinks the same.