QTR-Quadtone RIP

Looking at the cool and warm curves .qidf files for UT7 and EEM with the 2200, they seem 
to say that each uses only three inks: K, C and LC or K, M and LM for a total of five inks 
used. LK and Y are never mentioned.

This is true for the curves included with Roy's software and the ones just posted by Daniel 
Staver.

However, I've made sixteen prints with the UT7 inks and the Epson Printer Utility says that 
all seven inks have been used - and somewhat approximately equally. (My prints were 
about half 50-50 and half 25-75 cool-warm.)

Am I delusional?

Michael