I'm pretty sure that this has been asked before, but I couldn't find it. I'm very new to developing with any sort of pyro and was wondering what the difference between all the different "types" is. When I go to look at buying some it's so overwhelming in the choices, there's pyrocat, wd2d, pyro-T, PMK, ... What is the difference in all these? I can tell you that right now my favorite developer/film combo is Rodinal 1:50 with APX100. Which one of these pyro developers would "best fit" my film choice? or does it matter? Thanks for the help as always, I don't know what I would do without APUG -Grant