I did not bleach it extensively for the reason he states. It was the toning I did to it that I bleac hed it to make the slenium look like chocolate brown. I bleached the print after I had left it in slenium for an extended period. That orginal negatvie I used to enlarge from was extremely thin. Doing the enlarged negative process i was able to fix a few things. Who among us hasn't made a thin negative in the camera to being with?
I have a print of Aggies in which she did an 8X10 enlarged neg of a medium format camera negative. She had to bleach the Azo back extensively to get detail into areas of the print. Azo does require a lot higher DR then conventional negatives for enlarging. But in this particular case apparently the DR of the enlarged negative was beyond the scope of the material's (Azo) characteristics. Azo requires appr .50 log units density increase over a conventional negative designed for purposes of enlarging.