QTR-Quadtone RIP

Hi all,
First time posting here.  I always seem to be several months behind the 
curve (heh) on b&w printing, so I went back to the beginning of this 
mailing list and read almost every post up in the archive.  Tiring, but 
I think I actually know how one is supposed to use QTR now.  Kinda.

So I found out that I am "supposed" to be using the RGB Photo profile if 
I"m printing to file in Qimage, right?  Previously, I had not been.  I'd 
been happy with the results, but figured I should try and see it went 
using things "correctly."

Well, now I'm getting a LOT of bronzing on the Kirkland glossy paper. 
Is it correct to assume that this is just because I don't have a profile 
for the paper and I need to adjust the ink limit?

just making sure.
allan