QTR-Quadtone RIP

Hi - I have an Epson 2200,have purchased the piezography NK7 inks for it and
am trying to learn how to get the best prints I can out of the combination.
My question is, which would be better to use for the ink set when preparing
my pictures with photoshop cs2 - gray gamma 2.2 or gray-lab.icc?

 

This is my first post here (I've been lurking for a couple of months).  

 

Bob Hove

Robert@...