This became such an interesting thread to me, with a ton of useful information on what seems to be an accessible, useful alternative to standard C-41 processing for the tinkerer. Not perfect, but certainly usable. The benefits of brewing your own, plus more time/temperature tolerance, balanced against some potential color shift and possibly grain/speed changes, seem to make it something quite interesting to play with.
Thanks Athiril (Dan) and PE for your contributions. Should this become a sticky thread?