QTR-Quadtone RIP

I think the easiest solution in your circumstances is simply to alter 
the tone in the ABW settings. I've had a similar problem (magenta cast) 
when using third-party inks and I was able to get very neutral ABW 
prints by shifting the "Horizontal" adjustment towards the green. 
Something in the region of -15 did the trick for me, and it was neutral 
across the full tonal range.

I think you would be very lucky to find someone using QTR with your 
exact set-up to share curves.

---
This email has been checked for viruses by Avast antivirus software.
https://www.avast.com/antivirus