FR66s vs Ikeda IT-407 CR tonearms

I own the FR-64S Silver and the Ikeda 407 (Newer Style).  I use the Micro Seiki AST-10 Weight on both.  I much prefer the 64S with a Koetsu Blue Lace.  Not even close.  I could go on but Ill echo Syntax's experiences.
If you compare a 64S with the FR VTA Lifter that is on with the 66S they sound pretty close.  Probably not worth the extra $4k that that 66S costs.  But in a hobby where many are willing to pay a lot of a little it isn't a surprise. 

The early version of the 407 arms did have the Stainless Arm tube making them closer to the FR-66S in terms of sound signature.

Nandric,

Woah! Not contradictory. You're taking comments made almost 4 years ago about how I like Dertonarm's rewire versus original FR silver wire and the latest comment about Ikeda's rewire. 
Let me clarify. I like Dertonarm's rewire over original FR silver wire based on a comparison side by side on same TT and same cart because I have 2 FR66s. I then decided to get the Ikeda rewire done on the second FR66s and now both the rewired FR66s are very close. Can't really tell them apart.
One thing to note, when Dertonarm rewired my FR66s, he used Cardas male din connector at the base and reused the original FR66s connecyor at haedshell end because he couldn't find a replacement for those spring loaded pins.
Ikeda informs me that they replace the connectors at both ends with rhodium plated connectors. I can't hear any difference so maybe a moot point. 
I live in US and had to sent the arm to Germany and to Japan respectively, so no difference to me.
As for price, you'll have to ask them yourself. I'm not suggesting that either Dertonarm or Ikeda is better. I recommend both of them highly.

Nandric,

Dertonarm told me that he used Ikeda silver for my rewire. I ordered Silver wire for the rewire by new Ikeda company. I could not hear a difference between these 2. But I heard a clear difference between original FR silver wire versus Dertonarm's rewire. I told Dertonarm about this and he told me that the Ikeda Silver wire he used is better than original FR  silver wire.
As I mentioned before, I used the new Ikeda company to rewire my second FR66s because Dertonarm was now busy making tonearms and TTs etc. 
I use the term "new" Ikeda because Mr Ikeda is clearly no longer with the current Ikeda which is making the new Ikeda tonearms and offering service for FR arms.
As a final summary, I just want to share with FR64 and FR66 owners that
1) Rewiring the original FR internal wires brings significant improvements. In my opinion, it's a worthwhile exercise.
2) Dertonarm's rewring service is highly recommended. Alternative is the rewiring by the new Ikeda company which is also highly recommended.