Digital BW, The Print

Hello,
I'm fairly new to this group but have been bumbling around with B&W digital
printing for a year or more. In reading the posts I get the feeling that the
preponderance of the group uses MIS inks and Roark's curves. By contrast I
had more or less settled on the Piezotone inks. Some months back I tried a
set of MIS VM carts which gave good results but not as good as the Piezotone
warm neutral with black-black. All things equal (same paper, same print,
same export software) The MIS prints were flatter and didn't have as much
snap in the dark tones as the Piezotone.  I should say, however, that I was
using the R9/Sundance Photoshop export software for the printing rather than
printing with curves.

My questions are: Should I try the MIS inks again using a different
workflow? Has anyone else compared the MIS and the Piezotone inks with the
same or different findings than me? What are the advantages/disadvantages of
the two workflows -- ie the R9 photoshop export software versus converting
to rgb and using curves?

Thanks,
Jim Richey