The long awaited follow up (for nobody listening)... I’ve answered my own question. I finally got a Cadenza Blue, and it is everything I want out of a cartridge! Tonal balance is perfect (for me). Dynamics are tremendous. Distortion is low. No issues at the inner groove like with my old MC30super2. And the real surprise is how much quieter it runs. Dust & surface noise are reduced compared to all other cars I’ve owned. I simply love it.
As for comparing it directly with my old MC30 SuperII, the Cadenza Blue does have the same tonal balance and character, which is exactly what I was looking for. The Blue is, of course, better in every way.
I’ve also since, upgraded my Parasound JC3 to a JC3+. I went for it due to the greatly increased S/N ratio specs for the MC stage. While the JC3+ is quieter, it’s not the 8 dB quieter that the specs would imply. Rather the noise spectra is different and it sounds like they’ve reduced it in the upper mids the most. This is is a good thing, but it really only sounds about 2-3 dB quieter than the JC3. The + is also a bit more dynamic.
Trading up to the JC3+ ended up costing me about $1000, after selling my old one on Ebay. It’s hard to say if the improvement is really worth that much, but it’s done and I’m very happy with the JC3+. With the Cadenza Blue’s output of 0.5mV, the electronic noise floor is hardly an issue for me anymore.