Nottingham tonearms compared to other brands?

I am using a Transfi Terminator air bearing on a late model Mentor. The improvement over the Mentor Arm is notable. Cartridge is a mm NAS Tracer 4 (sic).

Hello Inna.

NAS still sells the Tracer 1, I think, but they stopped selling the Tracer 4 many years ago. Tom Fletcher told me that the stylus cost more to build than they could charge for the whole cartridge. Added to the silver coils, it was far too costly for a commercial enterprise.

So I take very good care of mine.