Digital BW, The Print

Hi guys -

So I _really_ want to switch my 1280 over to the UltraTone inks. But I'm a little leery of the "no guarantees" policy over at MIS right now. 

What's the general feeling you all have about these inks at the moment? Is it risky to try them, or is MIS just doing a CYA manouvre at the moment with inks that really are as good as they should be? 

I've been quite happy with the standard VM inks thus far, but I'm dying to be able to print on glossy/semigloss materials (FWIW, I really like the Pictorico glossy paper, which comes pretty close to a silver-print feel, imho) 

Also - can anyone give me an idea of how difficult it will be to run the two different blacks on one printer with this system? I'll probably mostly be working with the photo black, but I don't want to lose access to fine-art papers, so the eboni will be necessary sometimes. I get the feeling that I'd need to manually refill carts to do this - big deal? not a big deal? (I know this has been answered before, I'm just nervous, please forgive me :) )