Digital BW, The Print

I have the Cone inks in my 1160.  I did the full start up with the 
flu$h cartridge and all.  Almost from the very beginning, my black 
head seemed to clog.  When I run a nozzle check...I get a dash here 
and there on the black line, and get perfect check on all three 
grays.  I have run the head cleaning over and over, I have done the 
Windex procedure...I have done the Windex procedure with 
Fantastic...I have even done the emergency, last ditch recommendation 
from Cone of removing the carts and using a syringe with a rubber 
tube attached...injected windex into the nipple of the black intake, 
and forcing windex through the head and then drawing it back out...  
I get the same nozzle check over and over.  I have even bought new 
Epson carts for it and run the cleaning over and over (the Epson inks 
are suppose to have a solvent in them)  NO CHANGE.  same nozzle check 
pattern.  Are the Cone inks the most prone to clog??  Should I just 
send my printer for service (new print head) and cringe at the repair 
bill (can't find a new 1160 to save your life)...  I like the Cone 
system and software...but geez....$$$$$ for all.  Their inks are 
pricey, and although I have over $300 in the software, it does me no 
good if all the ink does is clog my printer.  Are there any dye based 
inks that are quadtone??  Is there any rumor Epson will produce quad 
sets for their printers?  I own a 1160, 860, and 1270.  I don't want 
to put the carts in my 860 and have it be ruined too...it's my day to 
day printer...  I am ready to go MIS if there is less clog 
problem..it is frustrating to the extreme...  Thanks...Steve