Digital BW, The Print

Has anyone replaced the Epson 10K archival black ink with Ebony or the Cone Museum 
Black pigment black channel? I know that Lyson has a new inkset out now called Cave Paint 
for the 10K and other pigment printers and they have produced a deeper black. With them 
that could be the old dye additon trick, I'm not sure. 

I would like to achive a little deeper black for my black only prints and fabric color 
work but fear the inevitable reprofiling of all my media. If it made that big of a difference I 
would certainly give it a shot, Though with all the clogging in this world I do it with 
thoughtful reservations.

John