Dear Vanderdm : The lod impedance for your cartridge as with any other cartridge is a critical issue and for what you posted seems to me that you are loaded at 47k that IMHO is not the best value. I think that around 300 ohms to 500 ohms could be better due to the internal cartridge spec resistance.
In the other side the cartridge could perform better if the " counterweight " ( as you said. ) is not down but a little in the up side level. VTA/SRA always is important to achieve the best quality performance and parallel to the LP seems to me not the best VTA/SRA set up. You have to test the cartridge at different VTA/SRA set up till you find out the one that meets your music sound system priorities.
Now, 2.7grs is a wrong VTF set up not only because is out of the manufacturer/designer VTF range but because out of that range the cartridge coils are out " place ". The designer VTF is not only to achieve the best cartridge tracking possible but to align in precise way the cartridge coils. Out of that VTF range goes absolutely against the cartridge overall quality performance.
If I was you I stay for the first 50-60 hours in the high side of the VTF manufacturer advise and after that playback time then start a fine tunning of the cartridge trying different values/set up on: load impedance, VTF, VTA/SRA and remember that each time that you change the VTF and VTA/SRA the overhang change and you have to reset it.
As the XV-1s your t model is a very fine cartridge but you have to have patience on the set up to achieve the best the cartridge can shows you.
Btw, I don't have experiences with your tonearm but I had experiences with other tonearms/headshells that were build by carbon fiber and for me this material is no " cartridge friendly ", at least I had that kind of experiences.
Anyway, the right cartridge set up is all about and you have to try/test different set up parameters and of course to have a reference to make comparisons.
Regards and enjoy the music,
R.
