Digital BW, The Print

Has anyone tried Ilfords MonoKrome pigment based quadtone inkset
(http://www.ilford.com/html/us_english/latestnews/latestnews1.html)? Ilford
offers a proprietary system (MonoKrome inks/relabeled Encad printers/Onyx
PosterShop RIP with special curves/profiles).

Any thoughts on how these inks could work on regular Encads?  I wonder if
there is a way to get smooth transistions (overlapping tonal regions)? What
do you think that it would take: a special RIP, driver and/or transfer
curves, LUTs, profiles, Quadruplex workflow,....?

Stefan