QTR-Quadtone RIP

Dear Helpful Folk,

As a newcomer to this field, I need some help in using QTR to create digital negatives on Pictorico OHP Ultra Premium, with Piezography K7 warm neutral inks (Selenium shade 1) on an Epson 1400.  Of the curves that come with QTR, what is the best starting point for my problem?

(I'm assuming here that I can use Photoshop curves created to be specific to the particular papers and alternative processes I'll be using.)

Thanks,

Alan Sockloff