No way to tell if Pyrocat-HD will cure this problem or not, without trying it. I kind of doubt it. My recommendation would be to switch to tray development. There is a guy who makes a special tray that will hold 6 4x5 negatives at one time, or you can use up to 4 5x7 trays at one time. (I haven't had much luck with the shuffle method.)(posted 8415 days ago)