You can also check antiskate by getting a grooveless record, turning the turntable on and checking which way the arm moves when lowered onto the record. Then compensate. The HFN test record has a grooveless test band, which will work, though with less margin than a whole record. You can also check which channel buzzes first on the HFN record. I find few carts will actually track the 4th band without buzzing, but that's a torture test, not likely to be replicated in real life.
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