Hi Afc,
Yes, the Unify that you have does have the anti-skating mechanism that you describe and not the magnetic type. You are exactly correct. In practice the effect of the settings would be the same.
As I mentioned, for whatever reason the Benz cartridges in particular like little to no anti-skating force when used with Clearaudio pivoted tonearms. Benz cartridges seem to me to work best on the Ortofon AS Series tonearm that I mentioned at about one-fourth of the recommended anti-skating force. This seems to be something a little out of the ordinary in comparison to other cartridges.
My most recent practical experience is with Benz, Clearaudio, Ortofon, and a few brands that I don't carry. The Ortofon and the other brands seem to perform as expected in terms of anti-skating force required in the Clearaudio and Ortofon tonearms. The Clearaudio cartridges seem to require less than the Ortofon cartridges, but more than the Benz.
To answer you Al, yes, I did make it a point to check the deflection carefully when I first ran into this because my first thought was that the setting could not be correct.
All of this may be true with the VPI arms as well, but I do not have any recent comparable experience with them.
But apart from this, I have personally observed better performance by running VTF in the top half, or near the top of the recommended force range on a number of catridges regardless of the anti-skating force.
But that's just my experience. I have worked with a number of tonearms and phono cartridges in the past two years, but far from any majority of them. I can only speak with any kind of knowledge about the limited exposure that I have had during that time. I will mention that I have had a number of customers mention that they get the most satisfaction by running cartridges in their rigs near, or at the top of their recommended VTF ranges.
But that may just mean that I'm not only guy out there with a tin ear.
Jim Pendleton
Osage Audio Products, LLC