Tim,
Have you seen his prints up close? They don't look like the result of a typical bleaching process, do they? They are unique.
Anyway, what I meant was, say he had KBr in the developer then two staged sepia toned with potassium ferrocyanide. That would be bleaching twice at two different steps. Selenium has a bleaching quality as well, so that would be a third bleaching and a separate step.
But the notable micro contrast is a global effect. And the toning quality is localized to separate areas in the prints I have seen. So I don't know how he does it, of course.
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