Roark recommends using different papers to adjust tone. Some papers print much warmer than others with the same inks. I have found this with piezography as well. But you won't get neutral prints without including a cool toner of some sort.
Also check out the quadtone rip group if you haven't already. Paul Roark sometimes posts there and answers questions.
This group supports the QuadToneRIP Epson printer driver and the Print-Tool application written by Roy Harrington. QuadToneRIP runs on both Macs and Windows computers. Print-Tool is available only for the Mac. Posts to this list should relate to the use of these programs. Note that anyone can...
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