I have been recently re-acquiring more rolls of Pan X in both 35mm and 120. I do find there is a slight fog to these films which make the grain larger then it originally was when fresh. That said the film was still very usable. I even found some Pan X in 4x5 dated from the late 60s/ early 70s (I forget which). Its a lovely film and we even talked to Kodak to ask if they could reintroduce the film to make new stock of it. That said Kodak is only a high volume film producer, so making Pan X would not fly. Plus they'd have to re-engineer the film to remove chemicals/ other that have come to be listed as toxic, etc. Now that the film division is under new management with the pension group, I would wonder if they would again consider it?