@rfauto A properly set up Umami Blue should not leave you not wanting for a "lesser cartridge"—your description of a thin sound points towards a sub-optimal setup. Either that or something else in the analog chain is causing it.
I would first ask the dealer how it was set up, which alignment system was used, and if VTA and VTF were properly tuned. You mentioned that you traded in your Clearaudio Cart, the Umami Blue should sound warmer compared to that.
I can't stress enough how important professional setup is. I have the ML, before that, I had the SL, and the thin sound is not what comes to mind when describing Hana house sound.