Digital BW, The Print

Hello...I have been reading all the qtr stuff, and downloaded the mac 
version. Right now I have been using the simple driver sliders method 
to print with UT2 inks on my 1280. I like the results. I also have 
tried the roark curves, and like the sliders just as well, and they are 
more intuitive for me. I also tried some prints with QTR, and they were 
good too, but definitely not better. So am i I missing something? does 
anyone else think the sliders do just as good a job? I have 5 different 
shades from neutral to warmer than I would ever use. I always use my 
second coolest setting which is neutral as I see it. I use Lumijet 
radiant white (anybody know what that "really" is??) and H. German 
etching, and museo, and Permajet matt plus, permajet parchment classic, 
and ilford smooth pearl w/printguard spray (and a diferent transfer 
curve to get the black right), and for big 12x18 i use velvet fine art 
with a bump in contrast to +4. All of these work great every time. What 
might be better with qtr? I see no diference, and the QTR and curves 
still need to be dialed in pretty extensively. The setting for ilford 
smooth pearl in QTR was bad.