QTR-Quadtone RIP

Hello as a new commer to the group and an user of qtr. I got a question

I am using a 2400 with matt black installed, I use MIS K4 inkset with 
their Eboni matt black.

I cannot get a neutral print using QTR no matter what curves I use.

I know that Eboni ink is warm, I though that I could by blending curves 
get a neutral print.  Is this possible with the combo I am using.

Thanks in advance.

Ed