QTR-Quadtone RIP

What I was hoping someone would tell me is why I should use QTR at all in 
preference to the Epson driver and Roark curves. I seem to have found one
good reason aside from print quality -- it would let me install both a matte
and photo ink at once in my 2200.

I get the impression that many of you out there do only unidirectional
printing. I'm surprised by this, as it doesn't produce a detectably better result
on my 2200 with the Epson driver. Or maybe I'm not looking carefully enough?

--Daniel

--- In QuadtoneRIP@yahoogroups.com, "Sergei Antonov" <antonovsergei@...> wrote:
>
> It probably means that for 3800 Epson claimed equal quality for both 
> bidirectional and unidirectional prints, and it seems to be confirmed 
> by testers/reviewers. See, for example, 
> http://www.outbackphoto.com/printinginsights/pi045/essay.html#20070212
> By the way it also seems to be true for 1440 vs 2800 dpi prints on 
> that model.
> 
> 
> --- In QuadtoneRIP@yahoogroups.com, "David Keenan" <ausdlk@> wrote:
> >
> > >but unless you have a 3800 just relax.
> > 
> > Eric --
> > 
> > What does this remark mean in conjunction with uni vs. bidirectional
> > printing?
> >
>