Here's a method for setting antiskate (AS) that's more effective than visual methods for lower compliance carts (and works for any cartridge, subject to the disclaimer at bottom).
1. Play 2-3 sides to warm everything up.
2. Reduce AS to zero.
3. Choose an LP or two containing your most difficult to track passages. Mono is theoretically better than stereo, as Nsgarch mentioned, but it's not essential. It is esential that the trial passages be amongst the toughest-to-track in your vinyl collection.
4. Play these passages and nudge VTF downward until you JUST BARELY hear the cartridge beginning to mistrack (slight fuzziness in the HF's and/or actual bursts of static-like noise, both coinciding with dynamic peaks in the music).
5. If mistracking is:
A) more audible in the R channel, gently increase AS until it's about equal in both channels (or goes away). You won't get it perfectly equal, especially with a stereo LP, but close counts for AS. There's no such thing as "perfect".
B) about equal in both channels, AS is set about right.
C) more audible in the L channel, something other than AS needs adjustment (assuming your AS is truly at "zero").
6. Bump VTF back up slightly until mistracking noises stop, HF's are clear and bass/dynamics sound full again. You're done.
You will be at a much lower AS setting than what is usually considered "normal". This method applies enough AS for clean tracking of your most difficult passages, which is all you need. There's no clear benefit in going higher and there can be a serious detriment (as Thomasheisig's photo demonstrates).
IMPORTANT - DON'T GO NUTS
Relax. Close counts. There is no such thing as "perfect" in antiskating. On real world records the skating force we're trying to counteract is always changing, so no amount of measuring, Wally-Skating, oscilloscoping or any other form of OCD-driven fetishness will provide anything more useful than your ears. Don't waste your time unless you enjoy doing those things for their own sake more than listening to music.
DISCLAIMER - Listeners who do not place low level detail retrieval and reproduction of harmonics near the top of their list of sonic priorities sometimes prefer more AS than this method provides. Increasing AS applies more lateral pressure on the cantilever/suspension interface (again, see Thomasheisig's photo for proof). This dampens cantilever freedom, slows response and muffles HF's and very low level signals. The effects of more AS are VERY similar to what my ears regard as excessive VTF. If your ears don't prioritize low level detail and harmonics, or if your sytem masks them, higher AS levels will produce a purer but less complex sound that you may prefer.
