The Adox Pan 25 suffers intensely from pinholes. I am very careful with all my processing, and it has never been a problem before, even when using Adox CHS 25. Something about the Pan 25 I just can't shake. I have tried both using and not using a stop bath, and am now going to try using PMK to harden the emulsion, hopefully that will help. Presoak isn't really necessary, there is barely any dye that comes out, its a very light green on the first fill and dump, and a bluish on the second. However I do presoak all the same, mostly because of my pinhole problem. I do process the film in a tank, but ever so gently, like any other film, perhaps I need to move this one to the trays. There is also a very bad curl from the film, it is a very thin sheet.