Schroder Tonearms - where do I purchase? are there authorized sellers in US?

@mijostyn Thanks. I get that the counterweight coating is something of a band aid. As you say, why not a non-resonant weight? And I got a laugh out the image of a steering wheel with a shock absorber attached, although it is obviously absurd while making a counterweight non-resonant is obviously not. Resonance there, after all, contributes to systemic resonance. But your point is taken: address it where it matters most. I was mainly wondering what you know about the OL arms that makes you think they don’t do anything elsewhere, since your statement about damping was blanket.

I have to say, your impassioned advocacy for the CB-1 makes me want to pick one up if only to see for myself. There’s a used CB-1L available at a good price, and I have the back position on my Technics crying out for something better than the Ortofon AS-309S that’s there now. I know the arguments that favor a 9" over an 11" arm. Does your love for the CB still hold for the longer one?

@wrm57 When we talk about tonearm resonance and damping nobody is thinking about a resonating counterweight aside from the fact that thin coatings do not do much.

As for Long Arms, Schroder will not make an arm longer than 11" He feels that is maxed out and I will defer to him on this. It is certainly a lighter arm to begin with and you have the flexibility of using a variety of cartridge mounting plates. I only use 9" arms not that I have much choice as that is as long as my table will take.

Best way to deal with the resonance of a counterweight is to decouple it from the pivot. 

AGAIN, thank you for the advice and guidance.  My 2-ch system is packed for transport, in my residential move from Scottsdale to Las Vegas.  I'll hold off on further action until I set up the system in my new home.  

Mijostyn - I may well consider the CB and take you up on your offer to build armrest.  May take me a few months to settle in my long distance move.