Question on FR 66s


For some reason, search on FR 66s in agon did not turn up anything much. I recalled that recommended S2P distance is 296mm rather than 295mm and Stevenson geometry seems to work best. Is this correct? I already have FR 64s which works very nicely with Koetsu. In general, does FR 66s works well with the more modern cartridges, Lyra, Air Tight, Dynavector etc.
I am kind of curious to try it but not sure what to try it with. Beside those mentioned on my system page, I have Kiseki Blue, XV-1s and Miyajima Zero on hand currently.

Thanks for any suggestion.
suteetat
Thank you Nandric, I am very eager to get in contact with your uncle Boris. We may put his Nataljia into the speakers and tell him everything is fine. The speakers are big enough. Do you think it might become a bit risky for me...?
I was as puzzled as Lewm with the offset angle .etc., and reread the article by Kessler and Pisha about the Tonearm Geomtery and Setup. I see that Lewm 'got the picture' in
his next post ( 05-19-13) but he is better than I in, inter alia, math and physics. The confusing part is the P2S distance. One should forget about this parameter and
consider that overhang and offset angle are also involved in tonearm geometry. According to Kessler and Pisha the most Japanese tonearms got the overhang wrong. That is to say not optimal in correaltion to the eff. lenght.
I got the answers from Daniel about his reasons to change his opinion about the 'usual' geometry but I need his permission to quote from his email first.
Now my own position is this. While I like to consider myself as 'pedantic' I am, lucky me, not an perfectionist. I made so much effort to get this damn distance for my FR-64 exactly at 231.5 mm and even more effort to adjust 7 headshells with carts on the 'line curve' of my Mint protractor that I have no intention whatever to mess with offset angle and overhang at all. O. Wilde wrote:'I have simple testes, I am always satisfy with the best'. My philosphy is: I am satisfy with the second best.

Regards,

I am privately wondering how one can cite the true pivot of the FR tonearms to an accuracy of 0.5mm, since the top of the bearing housing is a flat circular plane, IIRC. (The FR64S is not in front of me as I write this.) So, you need a REALLY good eye to find its exact center. And in fact, one has no way to be absolutely certain that the center of the circle is exactly above the center of the pivot point. Well, I will make myself satisfied by believing that it is, in any case.

Nikola, Here is a philosophical question: if you know something is second best, then you must have identified a "best" with which to compare it. Having done so, how do you know that your own best is truly best? Which means that second best might in fact be third best, or fourth, etc. Subjectivism rules.
Dear Lewm: Agree with you and I could add that first than all how can we could be absolutely sure that the hole ( arm board ) where any tonearm is mounted had the accuracy need it because we are measuring the distance: Pivot to spindle and that pivot position is critical?.

Regards and enjoy the music,
R.

Regards and enjoy the music,
R.
Dear Lew, Your philosophical questions are to difficult for me. Anyway the questions like: 'how do you know?' Should I say :'I have read this in some Magazine' to impress you?
But If you owned the Mint tractor specialy made for your FR-64 S in conjunction with the exact dimension of the spindle of the TT involved you would know when this exact
distance of 231,5 mm is 'there'. Namely when the stylus follows exactly the thin line curve 'cut' with the laser.

Regars,