QTR-Quadtone RIP

I just downloaded QTR to give it a try. I have been experimenting with 
Hahnemuehle Photo Rag 308 and Epson Enhanced Matte. I have been using 
the canned curves that come with QTR for both those papers. 

So far, I have been quite disappointed. I am finding that Advanced B&W 
is giving me far more neutral tones and more impressive prints. The QTR 
prints on both papers have some kind of weird color cast, which seems 
to be slightly cyan. I have been playing with mixing the cool and warm 
sliders in different percentages. So far, no mix of the two has given 
me a print I like. 

Any suggestions? Is there anything I could be doing wrong?  

Harley