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
BTW here is the manual for IT-407 CR-1

Anyone can explain me what is "CR-1" ? What does it mean ?
My Ikeda IT-345 tonearm has arrived, matte finishing, not a CR-1.
Arm tube is stainless steel.   

Everything about this model is great, my first impression is very positive about every part of this tonearm. Actually i feel that it is better made than my FR-64s sample. It is a third model of FR/Ikeda in my collection: 64fx, 64s and now IT-345 

@chakster Does your IT345 tonearm come with the vta tower (IT-VTA-06)? It is claimed to work both with Ikeda and FR tonearms. I am considering purchasing a FR64s and quite interested in reports about the Ikeda vta tower, since the original B60 is quite hard and expensive to find.
@gallus I have B60 replica base with my FR64s, it can be used with Ikeda too.