I thought I'd update this thread with some new info on toning with this paper for anyone who might search the forums. I know I would have appreciated it, info on this paper is scarce.
I went looking for a toner that would give me brown tones; I tried Kodak Sepia II bleach and toner and got more yellow than I wanted. The smell was terrible and I made the mistake of doing it in my unventilated darkroom - the smell was putrid.
I just today tried some New Agfa Viradon. I tried direct toning at 1:24 at about 20 degrees for 20 min. All I got was a very unexpected shift towards purple, almost exactly as if I had toned with KRST at 1:9. Perhaps not much deepening of the shadows as compared to KRST, but a definate eggplant and if someone had shown me the print without telling me what they toned it in, I would have definately said selenium. I had never heard of a brown toner giving purple tones!
I then tried some half strength bleach from the Kodak Sepia II kit I had sitting in a bottle. I bleached the second identical print for 1 min 30 seconds until the highlights and midtones were mostly gone and then washed and put it in the Viradon for about 15 minutes. After a quick wash the print is a deep reddish choclolate. Definately more of what I was looking for but too over the top. The print is overall a bit lighter from the bleaching but not overly so, I think maybe 4-5%. Contrast is about the same. I was looking for a subtle shift of the shadows, I think I bleached for too long even with the bleach at half strength. Am I correct in assuming that after bleaching toning time doesn't really matter, because it will go to completion?
I've got a print I'm making for a contest - a dusty road snaking through the grasslands in late summer. I'm going to try bleaching for about 30 seconds tops and then toning in the viradon for about 10-15 minutes to try and get a subtle warm brownish - red.
The smell of the new viradon isn't as terrible as the Kodak Sepia II, but the rotten egg smell is still there and is still pretty gross - next time I'm going to do this on my porch, I stunk up the entire house again and had to leave the doors and windows open.