Digital BW, The Print

I'm trying to help someone else out. They are getting what I consider 
very low dmax with the 2400 and Epson matte black ink on just about 
every matte paper tried. Values like 1.6 - 1.65 for papers like 
Hahnemuhle Photo Rag and German Etching, trying both the "normal" RGB 
color mode and ABW mode with several different paper types and driver 
settings. He's measuring with a brand new i1 spectro (i1 photo), and 
from everything I've read, all the settings are correct. I searched the 
archives to see if I could find a typical set of values for any of the 
more common matte papers, but either chose the wrong keywords or didn't 
find any. So if anyone has either density or Lab values for papers like 
the above two or EEM/EAM (any other Epson paper) we would be grateful.

One of the next tests is to have him send me a printed profile target 
(probably on an Epson paper so he can call Epson with the results) that 
he measured, and then I'll measure it and we'll compare the results, 
though I don't really expect to see much difference between our 
respective i1 spectro's. Thanks, Greg.