If you were to design a tone arm, what would it look like and feature?


There are a good number of different tonearm designs currently on the market. Some feature a uni-pivot, some gimbal bearings, some are air bearing designs, others use a knife edge...etc. We also have multi adjustability ( SRA, Azimuth weight, etc) and size--9 inch 10inch..twelve inch. Then we have the SAT tonearms that also feature carbon fibre etc., 
If money was no real object, what is your idea of the 'ideal tonearm' that you would design...and why?
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@atmasphere  Thanks, Ralph...very interesting. Would you consider the servo still to be a continuing issue with such a design. Must say, the Triplanar is an arm that I very much like, it would be hard to beat it in a number of areas. Oddly, it seems to have fallen from favor these days.
^^ Triplanar seems to keep busy somehow- if anything more busy than they used to be.

Having made a number of recordings, some of which I have mastered to LP myself, IMO the Triplanar is currently the state of the art and has been for some time. But lacking that sort of reference I can easily see why someone might think otherwise.
For tracking geometry and other issues, the Thales Simplicity II/Statement are hard to beat.
The Thales arm is interesting in design; it is a version of the Garrard zero 100 tonearm from the 1970's.  The theoretical disadvantage is having four pivots  for movement in the horizontal plane.  I also don't know if there are advantages or disadvantages to the twin arm tubes (rigidity, inertial mass).  Also, unlike the Reed arm, the Thales does not eliminate skating force because there is an offset angle to its headshell.

I've heard some very nice setups with the Triplanar arm and I certainly think it is in play among top designs.  I also heard a nice setup with a Durand arm.  Durand makes gimbal and uni-pivot arms; their top model is a uni-pivot arm (Telos, a model I have not heard).

An auto arm lifter (gentle) at the end of a record that does not thump the arm