The best black and white prints I have seen were made with piezotones from cone on a 7600. The second best, I've also seen some in a museum in europe that were made on a roland davinci fitted with piezotones. Oddly I don't think dmax is a big an issue as other things like tonality, shadow detail, etc. After seeing the peizotones I purchased a used epson 3000 and set up my own quad piezotones. This printer was a real PIA especially with the old piezotone formulas (clogging, etc) but I could easily resolve the difference between 0,0,0 and 1,1,1
I think with my epson 4000 I didn't see any real difference between 0,0,0 and 15,15,15 and I had imageprint for it.
Now I am not trying to open a debate about piezotones since I really only want to buy one printer for both color and b&w. I had been thinking that both the canon and the hp would come close since they have more blacks. Can anyone comment on these printers more specifically to the shadow detail and quality of the blacks - soft, hard, warm, cold? The piezotones had such a lovely velvet quality (which was mostly lost under glass - but still very cool).