What cartridges under $800 outperform DL-103R?


I have a brass plate on my nude DL-103 and I'm ready for a change. I'm looking for more air and ambiance, but don't want to sacrifice extension on either end.

I'm debating whether to try Uwe's Panzerholz body on a 103R, or try something altogether different like a Dynavector 20XH, Sumiko Blackbird, Lyra Dorian, Zyx R50 Bloom. I had a Benz Glider L2 (0.4 mV) for a while, but didn't find it any better than the 103R. My tonearm is Micro Seiki MA-707.

Any insights or suggestions would be greatly appreciated.
mingles
Also, has anyone used an Audio-Technica AT33EV / AT33PTG on a mediaum mass tonearm like an Origin Live Silver? On paper, it does not seem like a good match (with those AT carts having a compliance of 40 x 10-6cm/dyne, and the OL Silver having an effective mass of 14 grams).
"T carts having a compliance of 40 x 10-6cm/dyne

Actually, they are 10 x 10^-6 cm/dyne dynamic compliance at 100 hz, higher for 10 Hz. 40 is unheard from MC cartridge.
You are right, they do have a dynamic compliance of 10 x 10-6cm/dyne (100Hz)...that makes a *bit* of a difference. Thanks!!!
Nagaoka MP 50 MM cartridge is <500$ a giant killer cartridge. I can compare it to my Allaerts Finish and MC1 MK2 MC carts.