Phasecorrect, the OP's present cartridge has a recommended load capacitance range of 150 to 400 pf. The 2M Blue that was suggested has a recommended load capacitance range of 150 to only 300 pf. My rough estimate of approximately how much load capacitance his equipment presents to whatever cartridge he uses was 400 to 450 pf.
Regards,
-- Al
... so I don't feel the cap mismatch is a major issue in this circumstance...maybe in a higher end system...You may be right, or you may not be. I don't think any of us is in a position to say for sure. My point is why take a chance? There are lots of MM's and HOMC's out there for which the manufacturer recommends higher load capacitances than what is recommended for the 2M, as a perusal of the cartridge listings at NeedleDoctor.com and other sellers will show. The suggestion by Mesch to call them was a good one.
Regards,
-- Al