Digital BW, The Print

I've read the article http://www.paulroark.com/BW-Info/UT14.pdf explaining the use of the UT14 ink set and understand it. I've also worked with QTR and created ICCs for RR Art White and Polar Matte papers. But how do I create an ICC for glossy paper?

The UT14 instructions state that the Ebony black should not be used on glossy papers and that the blacks should be created using a blend of the Cyan and Magenta ink positions. I don't believe that QTR takes this into account. How does one go about shutting down the black position and making the printer print blacks using blends of other cartridges?