Digital BW, The Print

I recently ordered some GLOP and put it into the Y position as a 
replacement for the sepia toner.

I proceeded to try the GLOP on Epson Premium Semigloss with a custom QTR 
curve using C and LC inks. I tried everything from 10-100%, and contrary 
to others experiences here I got far better reduction of the gloss 
differential at 100% than at 10%. At 10% I would say that there was 
hardly any reduction in gloss differential at all, while at 100% the 
prints were essentially bronze-free. Unfortunately this also produced 
some visible mottling in the darker grays. I had to go back down to 
around 60% to get rid of the mopttling, but then I had some visible 
bronzing again.

The next thing I tried was a curve using PKN+LKN and 100% GLOP. This has 
produced the best results I've had so far. No bronzing or mottling, and 
I like the really like tone of the inks. I expect I'll only have to add 
minor amounts of toner the get the exactly results I want with this setup.

Anyone have an explanation for why my results are so different? I'm 
reading others here are getting bronze-free prints with just 10% GLOP, 
but that's so different from what's happening here I can hardly believe 
we're talking about the same thing.

--
Daniel Staver
http://daniel.staver.no