Hi All
I've been aware of John Wimberley's work for a few years, and his involvement in re-igniting interest in Pyro developers.
His compositions are very strong and original and the technical quality is superb, I know some people have seen his prints and been to workshops & attested to this.
One thing i can't find, with a significant amount of online searching, however, is which types of film he has used over the years to get this success.
I speculate about whether he prefers old-school emulsions, or whether he's has mastered the use of more modern emulsions with WD2D or variants.

Does anyone know, or asked him ( does he comment in his books ? ) ...