Who makes the 400 speed film for JandC? Is it Forte? I am particularly interested in the 4x10 size since only Bergger precuts it in that size. I believe the JandC 200 is the same film (I have personally only used the Bergger). I would be interested in the 400 speed version. What EI do you expose for the JandC 400 speed film? Any suggestions regarding developers? I regularly use Sprint (D76 1:1 clone), Xtol, Ilfotec DDX, HC110 and Rodinal. I prefer not to use staining developers. Thanks. Sincerely, Hany.