Which one, or are they not that different? I have been shooting for a few years now and until now I really cant tell what the differences between developers are, but I do know what I like (I do not like Xtol or Tmax developer). I have used L110 and Rodinal and PaRodinal before. I like them because they last a long time and they are easy to mix (no powders please). For the people who have shot Acros II and have used either of these developers, what did you like and not like about them? I have never tried Acros II before, it seems it is not that different from the old acros.