Digital BW, The Print

Good Evening All,
I intent to order a cartridge of MIS Eboni ink to install & use along 
with the standard OEM UltraChrome inks in my Epson 2200.  I print b&w 
using QTR.  I have two questions that I hope some one who has used 
this combination can help me with.

First, I have gone to the MIS Associates Inc site at: 
http://www.inksupply.com/index.cfm?source=html/main2.html but cannot 
find this particular ink.  All I seem to locate are ink sets.  Can 
someone tell me the MIS part number for the MIS Eboni filled 
cartridge for a 2200?

Second, my intent for now is to use the Eboni black even when 
printing color images.  Does anyone see an issue with this?

Thanks,
Bruce Varner
http://mywebpages.comcast.net/btvarner/Bruce/photo.htm