RE: your third question about the Phot. Formulary developers. I've used their BW2 developer that was advertised as bringing out the true sharpness of T-Max films. This developer produced extremely grainy 120 negs for me and , yes they were sharp but they virtually unprintable beyond 11x14 size. I'd guess it was similar or slightly worse than Tri-x pushed a stop. Now you have to understand that T-Max(100) 120 can usually be printed to 20x20 or larger and still look good so the trade off wasn't worth it for me.(posted 9614 days ago)