After a disastrous attempt at FSA (absolute brick red in no time at all) I decided to to try it again. This time I used dilute bleach at 1,2,4,6 min and then at the same intervals in the toner. (5mg thiourea dioxide + 10m sodium carbonate/ liter water)
Better results but still a bust. All quarters of the print I worked with all seemed the same no matter how much time in the bleach or toner.
Has anybody tried this? With better results?