Having just moved house and my darkroom I've finally got round to sorting out the film stock in the fridge in the darkroom. I've found rolls of obscure film that I've been given to try over the years, perhaps it would be fun to carry out a few tests to see which give the worst results. Of those that I've tried Fortepan, in both 120 roll film and 4 x 5 developed in just about any developer produced awful results. Of the tried and tested recognised combinations, any of the Tmax range in HC110 are awful IMO and I don't blame the developer.