FR64 cartridge suggestions

Forgot to say, happy new year.

chakster
I have 2 counter weights, one is 175 grams, which was used on the FR64 and  the other is 250 grams, which I'm hoping to be able to use with the FR64S.
I'm hoping I will be able to get balance close to the bearing so as to lower the seen Effective Mass, but won't know if it works until I get the tonearm back from Ikeda, which I just shipped on Monday, they will completely disassemble the tonearm, clean it, check for any issues, repair/relube and then replace the existing silver wire with new Ikeda silver wire.

I was planning on using a carbon fiber Yamamoto HS4S headshell... it is only 10.7 grams (compared to the 20 grams of FR headshell used when rating the FR64S @ EM of 35 grams) and the leads on the headshell are 6N copper leads, next I would like to find a similar headshell with 6N silver leads.

I talked with Peter Green of SoundSmith and he said that the 10um/mN @ 10Hz rating on their cartridges is a good match for up to around 29 gram Effective Mass on a tonearm. Actually most of their cartridges fall into this range.

Also...

HAPPY NEW YEAR!!!

Rich, You can buy silver cartridge leads on eBay. They are a product of either Yamamoto or Oyaide; in other words, the source is reputable. No need to purchase an entire headshell. In fact, I don’t know of any of the better Japanese-made headshells that come with silver leads. Most use high quality copper. I have an HS4S, too. On that one, I think the leads are hard-wired. You cannot easily replace them with silver leads. On the other hand, the elimination of one physical connection in the signal path is worth that sacrifice, IMO. Great headshell, by the way.

I am currently finding my Ortofon MC2000, which has the lowest output of any cartridge I know about, to sound surprisingly great through my Manley Steelhead while riding in an HS4S on a Dynavector DV505.  (No SUT needed.) I think this only works well because the Beveridge direct-drive amplifiers must have a very low input sensitivity. (Meaning, they don't need much signal voltage to drive them pretty hard.) I want to put the MC2000 on my FR64S, but the high-ish compliance of the MC2000 matched with the high mass of the FR64S gives me pause.  However, the low weight of the HS4S makes it worth a shot. You've convinced me.

lewm

Sounds like a great idea.

Also, so you know, I have been in contact with Tien, the person we bought these from, and he says that new screw guides are being made and will be done in a week or so.
I know Colby is very capable, I have seen much of his work in person, he has built quite a few HEAVY turntables, etc.
This might be something that each individual B60 may need 'custom tuning'... not sure if the tolerances of each were close enough for a universal part and that that is why we are having these troubles? Just as in the 2 examples I have, one has no vertical or lateral play, while the other has quite a bit lateral play.
Colby did make me the SP-10 MK3 center disc removal tool, thanks for the suggestion.
When I did the 1600 mile round trip from WA state to CA about a week ago, I was supposed to stop by Colby's new place on the way back (I live less than 200 miles from him, and have only visited him at his previous home, have not seen his  new acquisition) but I had drove straight, without sleep and needed to get home... won't do that again... 36 hours straight with only a couple 'cat naps' to keep me refreshed enough to drive.
I got the SL1000 MK3 home safely and it is in very nice condition.  Unused for the past 20 years and light use before that time.  When funds allow, will be shipping off for complete refurb with Krebs mods... but will have to wait, as I have spent WAY too much $$ in the past month or so.