In the never ending battle to defeat the ravaging vandalism of LF negative dust demons and the insidious corruption of the black spots they leave on my prints , I bought the Fotospeed retouching kit. It consists of three bottles of dye (black, dark grey and some sort of brown dye as well) and a two part bleach. The directions for the bleach tell you to mix equal parts of bottle A with bottle B (which I did using a medicine dropper) and bleach away. Well....using Ilford MGIV FB paper...nothing, and I mean NOT A THING!! happened. I tried a second time with a new batch...again...ZIPPO!! Then I tried using A by itself on the print followed by B (as with the Spotpens)....NADA!! Is it me?? Bad Karma or what??? I'd love to hear of anyone else's experience with this. Did I do something wrong, or is the Ilford paper just impervious to this form of bleach (the Ilford RC paper I used to use, i.e. was totally unaffected by even straight blobs of potferri...). What to do??