Nottingham tonearms compared to other brands?

I can only answer in terms of my personal experience. I have only compared my RB250 to my 12" AnnaLog NAS arm.I can only recall hearing one RB300 at a dealer years ago. My RB250 is quite fully tweaked... TWL's tweak (search here on A'Gon), the HeavyWeight and new stub, and Incognito wiring of course.
I have not heard the silver in the Nott because it arrived with a tag detached, and I detached a second tag trying to fix the first, so I sent it to Britaudio immediately. I am very satisfied with the Incognito in both arms.

My Rb250 sounds good, but my 294 kills it. I would be tempted to get a 9" NAS arm for the Interspace, but would have to a lot of disposable income and I don't.

I have a Anna arm soon to be attached to the table. As for now my Ace Space arm with the NAS made cartridge sounds great. The NAS arms remind me of 17th century English dueling pistols as they have shot down all the competition. Cheers.

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).

Terry9, where did you get Tracer cartridge? I might want to try it too.

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.