i have experimented a little bit adding little things here and there
with caffenol c --- one thing i do to boost contrast is add about 1oz +
of straight print developer.
the staining was still really nice from the coffee, and the ansco130 somewhat
boosted the contrast --
i don't have any other "normal" developer so i can't suggest anything but ansco130 ...
i didn't do this with sheets via stand, but with a unicolor drum with roll film
... i hope to have some results with sheet film soon ...