Digital BW, The Print

I'm a newbie to B&W printing, but am comfortable with color printing 
(calibration, icc softproofing, etc.)  I just purchased the MIS UT2 
inkset for my Epson 1280 printer, and I think that I must be doing 
something wrong.  The prints that I have made don't have anywhere near 
the apparent Dmax of the black-only prints using the Epson inks.  The 
print looks very "muddy", although the highlights are certainly more 
smooth without the ink drops being visible.  Here is what I have been 
doing, and would appreciate any suggestions on ways to improve my 
prints.

I've experiemented with various techniques, none of which seem to work 
well for me.  Using Paul Roark's curves:

1.  Lightroom to process raws to B&W
2.  Photoshop CS3 in RGB 16 bit
3.  Load the curve for Epson Enhanced Matte for the UT-2 neutral
4.  I've tried printing directly from photoshop, using no color 
management.  I've tried saving the .psd file and printing from 
Lightroom with no color management. 

Should I be printing from a greyscale image?  Should I continue with 
what I'm doing but use the Epson black ink, instead of the Eboni ink?

Any help would be greatly appreciated.  I just got one of the folios 
from Lenswork Special Editions, and I am incredibly inspired to try to 
replicate the richness of those photos.  I'm a long way off, but 
excited!

Thanks!