Is my anti-skating too strong.

Beats me how you guys can argue over such a simple and obvious bit of physics.
Ledermann's explanation is correct.

He mentions using the unmodulated run-out area of the record to observe scating activity.
This is better done with an entire unmodulated side of a record.  These are often present on MFSL 45rpm reissues.  Drop the stylus at various positions on the revolving record surface and observe how strongly and quickly the skating force pulls the arm towards the centre.  Then add anti-skating and re-test.  Adjust the anti-skating force until the best result is obtained in maintaining the arm most nearly stationary at different points and you will have the best amount of anti-skating to equalise the forces on each side of the groove.

Ledermann mentioned in passing that parallel tracking arms are complex and expensive and kind of excluded them on that basis.  I agree that many don't work very reliabily and are difficult to set up and maintain settings.  My Simon Yorke Aeroarm (an extremely rare piece I am fortunate to have, thank you Simon) works very well and cost one-quarter or less of the price of the top pivoted arms that are now $50,000 and more.  I know which I'd rather have.

I use the unmodulated side to set the lateral levelling of my plinth on the fly using a fine screw adjustment, so that the arm remains stationary on a revolving record.  Lateral levelling is critical for parallel trackers and this method is waaayyy more accurate than using a spirit level.

@feldman4     I have too many MFSLs to check.  But look for 45rpm classical symphonies presented on four discs and issued around 2005. Typically, each movement is presented on one side, so the other four sides are empty.  Given the pricing effect, I don't know what is the advantage of doing that since the record needs to be pressed in just the same way, creating just the same conditions as in a disc modulated on both sides.  Perhaps they felt there is advantage in never having to put the modulated side against the TT mat.  They don't seem to do it now.
Or if you don't mind getting drawn in, you could phone them; they are very helpful.

@mijostyn     Did you ever hear an Aeroarm?  There are only about 4 loose in the whole world!  If not, please pipe down and stay piped down.

Obviously a disc pressed off-centre is faulty (many of them I agree) and will not play to best advantage, but the lateral oscillation will be exactly the same when played with pivoted and parallel arms and will have precisely the same effect on the cantilever, located as it is very close to tangential to the groove.  Surely that is simple enough.

And why do you say the anti-skating must be 10% of TF.  As @justmetoo points out, the requirement will vary according to stylus profile.

@justmetoo     The reason Shibata and Line Contact stylii need more anti-skating is that their extreme eliptical narrow profile lateral sides create more friction with the groove walls compared with, say, a spherical stylus, the other extreme.  The contact area is far less so a like downforce creates more friction.  Such stylii typically feature on moving coil cartridges and need to run at greater tracking forces, typically 2.5g or more compared with a MM that can go down below 1.0g.

But 2.3g of anti-skating is waaayyy too much.  You are damaging your records and stylus as well as getting bad sound.  @jmijostyn is overdogmatic like many here, but about on the money.  Turn it back and listen for less distortion and better channel balance.

@mc    When did you measure the friction in the groove and on an unmodulated side?

@minostyn    Dogmatic is when you opine on sound without hearing.  Even Miller knows that.

I suppose you choose your equipment without listening to it.  The dealer's dream, but you should buy mail-order.

You're sure cleverer than I; you can tell how it sounds by just looking.  I always like to audition.  Anyone else here buy without listening??

Skating forces come from overhang. Period.    Wrong again MC, and a couple of other posts.  Skating forces can be inward or outward.

I think we are all agreed:
1.  There is no skating force, = side force, at a null point, and 
2.  There is an inward skating force when the stylus overhangs a null point.

So, guess what the force is when the stylus underhands a null point.
(ten marks).

Thank you Dover.  Finally someone who understands the principles and issues attaching to different arm designs.

Horizontal effective mass of a parallel tracker can inherently be much less than a pivoted arm.  Many parallel designs have arm tubes that mimic a pivoted arm because designers lack imagination and do not start with a clean sheet.  The stylus need only be two or three inches from the sliding bearer.  See Simon Yorke Aeroarm.
Dover, please note Aeroarm has adjustable VTA on the fly.

Yes, motorised carriages are nonsense.  They cannot constitute a low-friction bearing and will always cause drag or pull on the stylus in the groove.

Well engineered air bearings are very low friction, potentially far lower than gimbal bearings on pivoted arms.  Positive design features are very accurate machining - Aeroarm has a 5mu air-gap.  And vibration-free high and constant air pressure to fill the air-gap and keep the bar and tube in a steady-state relationship and not impose jitter or eddys.  Operating theatre compressors aren't cheap but do an excellent job.  They should be sited in a different room, a long way from the TT.  Don't use fishtank compressors, even big ones.

It is fundamental to prevent the stylus moving relative to the TT chassis, save as driven by the groove walls.  All other movement is other than what is in the groove and will be transmitted as distortion.

So pivoted arms hung on strings are utter nonsense.

Unipivots are also inherently unstable in that respect, so difficult to engineer.  Damping will tend to cause drag, although nearly all are damped, usually with liquid or gel.  The only solution is to site the pivot high relative to the record surface, but there will still be a tendency for the contraption to swing and allow the stylus to move from lateral perpendicularity in the groove.  Even a little of this is VERY bad.