Digital BW, The Print

I am considereing moving from UT-14 to Ebony 6 for non-glossy black and white prints. A review of the two ink sets shows the following ink descriptions:

Eboni-6
K = Eboni (The standard MIS Associates carbon matte black ink) - use UT-14 K
C = EB6C (30% Eboni, similar in density to the standard MIS UT dark gray density) 
LC = EB6LC (9% Eboni, similar in density to the MIS UT Light Carbon density) 
M = EB6M (18% Eboni, similar in density to standard LK) 
LM = EB6LM (6% Eboni, similar in density to standard LLK) 
Y = EB6Y (2% Eboni, a very light "LLLK")


UT-14
K (black) position = Eboni matte black (MK)
Cyan position = Neutral-cool Photo Black (PKn, a blend of 60% carbon, 
40% color pigments)
LC = Neutral-cool Light Black (LKn, 30% UT14-C, 70% clear base)
M = MIS K4-Photo black, (PK, 100% carbon and warm)
LM = MIS K4-LK (100% warm carbon)
Y = Gloss Optimizer ("Glop")

Naturally, I would like to re-use as much of my existing material as I can. I have the PR Clearbase, plenty of Eboni black and some spare carts on hand. 

It looks like the E6 Cyan postion and the UT-14 Light Cyan are the same. Will the printer detect and reject a LC cart if I put it in the C position? The other four positions are just further dilutions, which I can make from the Eboni and clear base. What are 'standard LK' and 'standard LLK'? Is this a reference to the 2K2LK ink combination? (Which is not Eboni.)

Instructions for the Eboni-6 note that the parking pad should be cleaned between use with dye in and the E6 ink. I never had any issues with UT-14, in fact, the move from color dies to UT-14 is utra simple; load carts, let the printer do its head cleaning process, do a nozzle check and start printing. How serious are the cleaning requirements with the E6 ink?