I had previously posted my question about XTOL and finding the part A powder to be caked, and the consensus was that this was acceptable and not problematic. after many months of use, I have come to the conclusion that this is indeed an indicator of something that negatively impacts the behaviour of the developer. subsequent purchases showed part A to be granular and the solution (parts A&B) to be much stronger. it isn't clear what had caused the caked part A, but the word is that Kodak will replace the developer on request.(posted 8986 days ago)