Jeff White: You answered my question. If I add part B to part A and mix, then use that solution to create one-shot quantities at my dilution my problem is solved. I use enough developer between roll film and 4x5 sheets to use up the small size TMax-Rs in about 4 weeks. Have you actually done this? Has anyone on the list done it? I am going to try it and will tell you how it worked. Thanks again.(posted 8421 days ago)