I've just spent the past few hours toning ... I was going for a sepia (indirect 2-bath type) and selenium split which I have done a few times before and really liked the effect. This time i had some big problems which has ruined my prints. After I bleached back the highlights, i tried to re-develop in the part B thiocarbamide solution, but this worked very unevenly leaving streaks of untoned areas. I immediately thought this must be poor washing leaving fixer in the print and this had reacted with the bleach to permanently remove the image. Out of interest, I thought I'd re-develop in some working strength developer to see what happened .... this did bring back the image so this cant have been bad washing can it? I'm baffled. Possibly a bad toner (it was very cheap mix-it-yourself kit) ? Any ideas? By the way, I did find that by re-developing the bleached tones in cold Neutol WA (1:10) , I got some really nice bluey black cold tones on Ilford MGFB wt. A good thing out of a bad I suppose, but I now have a load of prints with bluey black and sepia steaks all over them ... humphhh.