Ugh, ran another ten sheets today and I am having a heck of a time with Delta 100 in 4x5 in terms of pinholes / emulsion coming off in specks. I am running either Xtol 1+1 or HC-110 B in rotary / Jobo 3010, no special distilled water, temps within 1/2 a degree. I am using Ilford Stop bath and Kodak fix. It's definitely emulsion though, I can see the marks in the emulsion with a 15X loupe...very Efke-like behavior although rarely in the middle of the sheet, opting for corners or edges, really odd..... It's the only sheet film I have this problem with.....and I have always had it, thought it was dust for awhile... What the freak is going on?