Digital BW, The Print

>Paul wrote
> What I have not heard is whether anyone has tried the UC inks in 
older Epson
> printers.  If they have the right viscosity, the UC inks and their 
clones
> might be used in quads for the old printers.

Just curious.
There are black and gray in the UC set.
Do you know if the gray is a dilution
of black or contains the other (CYM) colors?

I thought only the carbon based inks are not
mixes of cmyk? And even those sometimes are.

Your thoughts about a UC quad strategy?

Thanks
Bob