See: http://dvautier.home.comcast.net/lp/lp.htm

Skating is often the result of record quality. I have some records that track fine whatever "anti-skating” force is applied. Other records are really bad especially toward the center where the skating force is greatest. I do notice that the outer record grove will sometimes suffer some fuzziness and "chatter" if anti-skating is not applied. I usually track at ¾ gram and I don’t get much skating. If you read the link above it explains this better.