Maybe Ron's reading this and can shed some light...

I remember a cautionary note about coating this emulsion on film; since it's non-absorbent the excess salts(?) won't absorb down into the fibers. One result is crystallization, but what else might that do?

In person, the paper negative is much denser than the film. Why might this be, considering that the exposures were approximately equal and even a bit longer on the film?