FR66s vs Ikeda IT-407 CR tonearms


Has anyone compared the FR66s to the newer Ikeda IT-407 CR1 tonearm? Any thoughts? In previous years, the Ikeda was available with either copper or silver internal wiring but the recent models don't mention anything about the tonearm wiring. Can anyone comment what type of wiring is used in the latest editions? It would seem intuitive that the later Ikeda IT407 should be a better performer than the FR66s having improved material and bearings over the FR66s but the proof is in the hearing.
ddriveman
@gallus I have B60 replica base with my FR64s, it can be used with Ikeda too.

@gallus
I have both the Ikeda IT-VTA-06 base and an original FR B-60 base. Both work fine on my FR64S, but I like the Ikeda better - it's newer and everything tightens up better on it. Those set-screw hex heads on the B-60 can get pretty marginal over the years.

I've settled on the Ikeda base on my setup, and am very happy. I also like the Ikeda headshells with FR64S.

Dear chakster, Ikeda IT-345 ''armwand'' is not made from steel.
As J. Carr explained  3 different materials are used for the
''armpipe'' in order to supress resonances. According to Carr
Ikeda got better understaning  of involved resonances after the
FR -64/66 S  series. Also there is no lateral balance on IT 345&
407 ''models''.  I bought IT-345 because  Carr mentioned that
according to Ikeda and his ''mechanics'' IT-345 was their best
tonearm. I sold my IT-345 because I prefer my both FR-64 S;
the silver and copper kind.
Thanks a lot for the feedback, @mulveling ! Although also expensive, if 
I´d purchase the Ikeda I will be sure of getting an original, which is not always the case with the B60 offerings...