Unipivot vs Linear Tracking

Dear Sirspeedy, Can you recall the name of the LT arm that was used as a comparator in that review, OR can you supply a reference to the article? Sounds like there was only one well recognized top quality pivoted arm involved, the Brinkmann. The one or two reasonably priced LT arms that are now currently on the market do interest me.
And by the way, what is the significance of all the quotation marks you use around single words and phrases?

I did some research after posting. The cartridge man is one inexpensive LTer and then there is also another one that uses nested triangular girders. Can't tell what that one costs, but it would seem to be in the $1K range or less. If LTs at that level of cost could compete with top line pivoted arms, that would go a long way in support of any thesis that posits the inherent superiority of the design. But I don't think it would be the case.

No concern re your punction. Just curious.

AL, The operative word in your first sentence is "theoretically".  Yes, an SL tonearm is theoretically perfect, but it is never actually perfect, which is one reason why the SL type does not completely dominate the high end of the market. The other major reason, IMO, is the need for a pump, the problems that come with that (noise, moisture in the system, etc, etc), and the problems associated with trying to achieve elusive perfection.  But I would agree that among SL tonearms, the ET2 is clearly a winner, along with a few others.