I've been processing FP-4 using ID-11 at 1+1 in a Jobo. This is sheet film. I'm dead happy with the negs, they suit my enlarger to a T. What I'm wanting to do is start processing FP-4 roll film that way too, same set up as with sheet film for similar results. Anybody use the 2502 reels? Any problems? Got a couple spare? - if anyone has I'd love to hear from you!