ZU v Soundsmith DL 103

Has anyone been fortunate enough to compare theses two cartridge adaptions?
I have just installed a ZU into my system and have been pleasantly surprised at the performance - quite amazed in fact!

And a second part to the question: has anybody tried these is a Kuzma 4point? I have, and I have to say I've been close to gob-smacked at how well the two go together.