I remember Dye Chrome K2 chemistry used to make a kit that used a split bleach step. A C.C Phifer made it. Used it to control contrast..
Called the number thats listed in Ctein's Post exposure book, but no answer.
I still print Ilfochrome,have 100 sheets left. After that i will try something else
,its too much money if you can even get the chemistry.
Wish some one thought about this ten years ago,for if i could get a steady supply of the stuff, its all i would print...
Last week i printed my last sheet of pearl...

John