I've not tested capacity limits for Ilfosol-S. Little enough film gets developed here that I just play it safe and use the urban legend "250 ml per 80 square inches." That would be 25 ml of concentrate at 1:9, so I use 375 ml total at 1:14 for a 120 roll of TMX in the Jobo. No shoulders noted.(posted 8269 days ago)