Hi ! I found some really old batches of Kodak Microdol-x developer on a flea market. I usually take Polypan F with me, as it is cheap and looks nice to me. I normally use it at 100 ASA, but I only find developing times for 50 ASA. MassDev tells me to use x1,5 for pushing, so I would have 27 minutes. Possible? Or does anyone have different experiences? Thanks a lot !