I use two MC carts with my Technics 1200G, the Delos which I’ve had for about 3 years, and an AT ART 9. I have MM carts as well, but I haven’t tried them yet with the Technics. No reason for not, but I haven’t yet.
The Delos is more revealing, cleaner and tighter sounding, but compared to the ART 9, it is brighter. I’ve sort of stopped using the Delos as the ART9 does such a nicer job with midrange, channel separation, and macro level weight. It is not warm, but more musical. Add that it is half the price of the Delos makes it a keeper for sure. If you want to evaluate a system change, the Delos may be the better "reporter".
I would say you are hearing the Delos correctly.