A great match with that particular arm! This is the best sub-$500 cartridge available!This is funny statement.
In my opinion even Grado Signature XTZ ($750 in the 80s and probably twice as much today) is not the best cartridge compared to some others in sub $500 category, but the cheapest Grado MI can't compete even with vintage $350 Pickering XSV3000 or $450 AT-ML150 OCC.
What is good about Grado Prestige series is a range of different styli avaibale today from Grado, including top of the line 8MZ, TLZ, XTZ, so the upgrade of the stylus (and oversall sound) is always possible.
Grado DJ100 and DJ200 has the same MI generator as the Grado Black.
Those Grado DJ carts belong to the Prestige 2 series and they are the best sounding DJ carts designed today (with extended frequency response up to 50k Hz and does not require high tracking force as most of the other inferior dj carts).
@mycoscot Maybe you just have to replace your dj carts with a pair of Grado DJ100 or DJ200 ? Technics headshell will work fine on your Micro Seiki tonearm.