QTR-Quadtone RIP

I bought QTR when I first got an R2400 with my main purpose being to 
make Black Only prints.  My main expertise in photography is in 
Platinum and Palladium printing and making digital negatives has 
sharpened my computer skills but I am still not a great technician. 
After a few months I can now get good Black Only prints by switching 
off the toners from the closest profile I could find but I have not 
managed to make my own curves for the papers I like best.  Instead I 
use curves in photoshop combined with intuition/trial and error/luck.  
I use MIS PK ink and like MIS Hot Press paper and also Inkpress Fibre 
Gloss sometimes.   Does anyone have a curve made for these or similar 
papers.  I'm certain that QTR is the perfect way to make Black Only 
prints but I think I am stuggling to just scratch the surface of its 
potential. Any help, advice or tips would be much appreciated.
Matthew