Hi Petng,
I don't have the time to visit forum on a daily basis these days and didn't realize that you asked the same question (about anti-skate) over here as well as in a private e-mail to me. I might as well paste my private answer to you here, where it might help someone else.
Your description above is one of (likely) really "wound up" the thread into knots. You want to return to neutral (no twists) so you can start over.
I assume you know the difference between independently raising/lowering the magnet spacing (use the Allen key in the hole to keep the set screw from rotating while spinning the knob), and adjusting anti-skate (don't use the Allen key, and merely spin the knob).
Reduce the spacing so that the magnets touch and put a bit of slack in t he thread. Then slowly rotate the anti-skate knob (probably clockwise, but try both directions).
View the thread through a magnifying glass. You're trying to verify that you've returned to a neutral position (no twists). You should be able to see the fibers to verify that you've completely untwisted the thread.
From this point, use about 1.5 counter-clockwise turns as your starting point for anti-skate.
Cheers,
Thom @ Galibier
