Not sure what you're seeking to achieve with the QTR-K3 split toning - I am using QTR in a slightly different way to the warm/cool/neutral/sepia curves common with the application. Following a method Les Walkling introduced me too I have 6 curves - Neutral, Blue_Grey, Purple_Selenium, Red_Selenium, Warm_Black and Yellow_Sepia. With small amounts of the toning curves there are numerous possibilities. I believe Les designed the curves to mimic the old Kodak toning formulae/cards.
I have previously also used piezography selenium inks. The results I am getting with the above approach are very pleasing, particularly with the Espon SC P800 which I am now using.
Anyway, I'd be happy to send you some overview materials/talk to it with you in more detail if you think it's of interest.
Jason (also downunder)
wattsies67@yahoo.com