Fidelity Research FR64s Headshell dilemma


Dear FR64S users can you help me please. I have an FR64S that i bought without a headshell. I have only just got round to getting it mounted. I did pivot to spindle distance of 231.5 (the alternative distance' I also have an armboard for 230.
I tried a Sony headshell that i had - it was 2mm short of correct alignment. So I bought a new Jelco headshell it was also too short. 
CAn you tell me what headshell does work to allow other cartridges to work. I'm just using a DL103 for alignment first as I fettle the rest of my front end.

thanks
lohanimal
@karl_desch 
No - the problem is that cartridges do not have a standard distance between stylus tip and mounting holes. Similarly headshells vary in their length and postion on holes/slots. So when you push the P2S out you will get this problem from time to time. With the 231.5 P2S on the FR64S I have used the Orsonic 101, Ikeda, Denon PCL300 headshells and had no problems. I'm pretty sure the Sumiko headshell should get you there as well. On some headshells with a collet type connection for asimuth adjustment you can puah the shell out a little further without losing rigidity.
Oyaide HS CF is also a good one if you need the extra head(shell)room. But this is a low mass carbon fiber shell. So maybe not the best choice for the 64s, unless you have the W-170 counter weight to compensate.