How many grams weight for mm cartridge?

Dear @mofimadness : You are right, no one Grace series 9 is for 0.5grs.

There is a cartridge where the manufacturer VTF range is: 0.25 to 1.25 grs and is the Empire 4000D3. I never tested at 0.25grs but I did it at 0.5grs and performs good. In the same Empire series the D2 starts at 0.5grs.

Btw, @chakster , could you tell us how good performs your Grace at 0.5 grs. against higher VTF values?

Regards and enjoy the music,
R.

Dear @kingshead : You are right, I was thinking only in the F9 series.

Regards and enjoy the music,
R.