Now for something not so technical. I just developed a roll of TX 320 using a half filled bottle of solutions A and B that had been sitting there for at least a year. Mixed them up 1.5:1.5:100 and dev for 15min's. Guess what? They turned out beautiful! I had previously developed it's sister roll in HC110 dil B and the PyroCat HD negs look and print much better. Mind you it was one of those sweeping prairie landscapes with lots of puffy clouds that PC-HD seems to love.
Just thought I would throw this in as it seems everyone thinks the shelf life is pretty limited.