Digital BW, The Print

OK...so I use the 1280 with UT2/eboni and It all works really good with 
lots of rag and matte papers. Occasionally I need to make a glossy 
print, and for that I determined that paul's curves plus print sheild 
spray is pretty good. BUT....I now need to make some glossy prints that 
need to be really good. As good as the photo rag etc. There cant be any 
bronzing, and should be glossier than the print sheild spray ends up.
My Question: does the the photo black make a significant diference in 
bronzing?? I have not tried it, but suspect that it does not 
significantly improve on the Black-less curves that paul roark has ( 
graciously) offered. I say this because even with no black in the mix, 
there is some degree of bronzing, and we still need to spray. Now, 
before i switched to UT2, i was doing black only, with the original dye 
epson ink, and the output was great on glossy paper, (except for the 
dithering pattern which ruined it for me).......so....is the photo 
black free of bronzing? If so. does it work as black only on glossy 
paper? I can live with a little dithering patern more that I can with 
bronzing.
Just to clarify, here is the list of problems I have dealt with 
regarding papers using pauls curves etc....ignoring any kind of 
permanence issue:

Ilford smooth pearl: awesome image, ALMOST no bronzing, but you need to 
spray it, and then the finish really shows the spray. Almost like 
becomes a pearl finish, but a bad pearl finish.
Ilford smooth pearl: Horrible bronzing that looks like glitter 
sprinkled on the print. Spray almost fixes it....almost.
Lumijet gallerie gloss: not much bronzing, but the ink does not stick 
at all to the paper.
Epson premium smooth gloss: Bronzing which needs a lot of spray
Epson Premium Gloss: Ink does not stick
Epson glossy photo paper (cheap photo paper)...Wow pretty good, almost 
does not need spray, and when you spay, the spray almost does not show. 
Almost almost almost. That is the problem I'm trying to beat right 
now.........Thanks for any help!