QTR-Quadtone RIP

Just downloaded and will start using QTR. The selection of available
pre-made curves seems to be many less than Tom Moore hinted at in his
manual. (This is for Epson R2400, using Windows). There are no
cool-selenium curves for example, and I thought there might be curves
for Ilford Gold Fibre Silk and/or Innova papers, which I want to start
using. Seems to be some other Ilford curves, Epson curves, Hanamuele
curves, and just a few others. Are there other curves that are
equivalent to Ilford GFS or Innova semi-matte? Is there some special
secret place where you can download more curves?

Also -- some photographers I admire have raved about Quadtone RIP, but
there was a hint in another post that the Epson R2400 driver, because
it had the b/w module, was virtually as good. Is this true? Seems like
QTR has more flexibility. If I print on, say, Epson exhib matte, am I
likely to get better results "out of the box" with QTR than with the
Epson driver, do you think?

Many thanks!