I have always used stock solutions, 300ml for 135 and 500mm for 120. in searching for an Xtol alternative, I have stumbled upon Acufine which is meeting all my requirements without the grain bloating of Rodinal. unlike Xtol, mixing is a pain, but I like its six minute processing times, push processing, and resulting quality of the negative. and of course, a high degree of trust that opening the tank lid will yield a glimpse of silver.(posted 8294 days ago)