Hi Chris I could do an article about push processing film. I say this as I used to photgraph bands and stage shows in the 70s. This was in and around London, from The Marquee Wardour St to the backs of pubs. I used Apan400, Tri-x and HP5 all pushed to 800, 1600 and 3200. I'm not sure how to get the images to you, presumably it means scanning, so if you want the article I will endeavour to sort it out. I mention this as yesterday someone wanted info about taking pics in low light.