Digital BW, The Print

Has anyone replaced their Epson Ultracrome inks in their 
2200,4000,7600,9600 with the MIS Ultracrome equivalent inks. How do 
they work with QTR and IJC profiles to make B&W prints. Are there any 
noticable problems such as cloging, etc. vs. the Epson Ultracrome ink.
Please let me know ASAP. I'm thinking of changing to the MIS inks and 
the clear carts.

John H

P.S. Does anyone know if MIS developed these inks or are they 
purchased from someone else.