QTR-Quadtone RIP

Hello all. I'm a new group member. I've been doing photography and
inkjet printing for a few years now, but I'm completely new to the
world of B/W-quadtone RIPs.  

As I understand it, I can purchase and use the Harrington RIP with my
R2400 (with existing matte black inkset), but the image information is
processed differently than using the regular Epson printer driver,
optimizing it for monochromatic images. 

I'm wondering, first, about paper choices: right now I mostly use Moab
Entrada and Crane Museo II. Can I still use these papers successfully
with the Harrington RIP (sounds like the name of a tidal rapid)?

And, I've had custom profiles made for these papers. Are they still
applicable when using the RIP, or do I have to make new ones
specifically for RIP use, or?

I'm sure some of this will become clear by just jumping in and working
with it, but wanted to know about these things initially.

Thanks, David