I have finally managed to use my Pyrocat-HD on a couple of 4x5 images tonight. I developed 2 and I am reasonably pleased with the results. Both shots were reasonable long exposures (22 secs and 50 secs) on FP4. Images seem to have a fair contrast (Black background is clear) but the negs are pink when wet not brown as expected. Have I mixed wrong? There is no streaking evident and 85ml of solution used in BTZS tubes.