Don't know about that particular cartridge, but most MC carts are not that sensitive to capacitance loading. However, the impedance load you've selected is far lower than usual for that cartridge, and I would wonder why it is sounding best at that low setting.
loading question
I have been fiddling around trying to find the setting for a ruby H .8mv I have tried 47k/10k/ 1k/ 100 ohm and settled on 100ohm. The question I have what should the capacitor value be set at 100pf/ 470pf/1000pf are the settings offered.Its a BAT vkp-5 phono preamp.Associated equ. TNT JR SME 309. I thank you for all your imput. David