Went to the DC Calumet, to pick up some HC-110. They didn't have it, but had a bottle of Ilfosol 3. Ilford recommends 4.25 minutes, and I don't like processing times under 5-6 minutes, especially since I plan on using a 4 -120 roll tank. Since I've never used it, I plan on trying one in a single roll tank, but I still think 4.25 seems a little short. I shot it at just under box speed (100). Anyone with any experience with this combination? If so, are you finding 4.25 correct?