I have couple of beginner questions: 1. Since I got a load of different types of b&w films from a guy who turned into the d-world, I would have to get 1 or 2 different kind of developers. I have various Ilford films (ISO100, ISO125 (pan?) and delta3200) and Kodak tri-x400, kodak tmax100 and 400, tmax3200. So is there a developer which is fine for all of them or should I buy one for high ISO/pushed films and different type for lower ISOs. Or maybe different dev for different brand? I developed one roll of Ilford pan100 with tmax rs dev and the results were just horrible. Huge grain and total mess in every way...(maybe got also something to do with dev times - I checked the time from digital truths dev chart). 2. In what kind of situation do you use lower or higher dev temperatures? What does it do for the image if I let's say dropped my usual 24 C degrees to 20 C degrees? 3. I tend to like kinda contrasty results - how should I develop to get sort of contrasty look when the images were possibly shot in dull/contrast free lightning?