Digital BW, The Print

Using a dedicated 2200 and MISUT7, I'm currently happiest with Epson's
driver. 

With OEM pigs I liked QTR tone control, but all my B&W is now with UT7
and I've not found any advantage to QTR with that ink...when I want a
little tone control, I change papers. 

Some say Qimage offers advantages with OEM pigs but I've never seen
comment on it in combo with UT7.

Any B&W advantages to Qimage (other than for professional labs or high
volume work)? 

Anybody prefer QTR over Epson with UT7 ? Why?