Digital BW, The Print

Forgive me if this has been asked before, I did a quick search and found only one 
comment.

Is any one switching back and forth with the epson color cartridges and either 
the quadtone or ultratone cardtridges with the 1280 printer?  

I would like to start getting higher quality black and whites, but also do alot of 
color work. MIS suggests that this is not a good idea, but I would like to hear 
from those that have maybe tried or are successfully doing so before I jump on 
the band wagon.

Thanks....