QTR-Quadtone RIP

Hi, 

I have a feasability question regarding the use of QuadtoneRIP with 
multiple ink types in a single Epson 1400 printer.

I have been using the Epson Claria Black dye ink with QuadtoneRIP to 
produce black only prints on glossy and luster papers. I am quite 
happy with the results.

Recently I purchased a set of empty, refillable cartridges from MIS 
along with bottles of Eboni-6 black inks. 

To avoid giving up the black-only dye prints, I would like to use 
only the 5 darkest Eboni inks in the other positions. Of couse, I 
would never be mixing the inks. I will make custom curves to use only 
the Eboni inks or only the Claria Black. 

Does anyone know if this will work? Will I lose much by not having 
the lightest Eboni gray? Or is there any problem with changing the 
cartridge positions of the Eboni blacks?

Thank you, 
Tyler Coen