QTR-Quadtone RIP

I have used a number of the B+W "solutions" and have found them 
wanting.  Part of this may well be ignorance/incompetence on my part.

I am now contemplating jumping into the matter again with an Epson 
2400 with the Photoblack ink for use with a semigloss paper (I use 
Epson Premium Semimatte for color on my 4000 with Media Street 
Ultrachrome and get great results).

I want the punch and Dmax afforded by the Pk ink.

I have used another 4000 with MIS and Sundance Septone with 
disappointing results on matte paper.

My questions:

What paper choices do I have.  Will I have to make custom curves for 
most papers?  I read somewhere that QuadRIP only supports Epson 
Enhanced Matte and Ilford Lustre with "canned" profiles.  Is this 
true?  How big a deal is profiling the paper/printer combination?

Do you think the combination of 2400 and a semi-gloss paper is a 
good idea.

Any other thoughts, please. 

Thanks,  Walter