I am in a Film Photo Club in Phoenix. We decided to order a bottle of the R3 developer from New55. 5 Different people, different films, different cameras, all with same results, banding at sprockets on the 35mm and streaks on the 120. No agitation and used at 80 degrees per directions. I did try one roll with some agitation (spinning the reel in the tank gently). Seems to me the problem is as it gets poured into the tank, the development is irregular due to the flow into the tank. Once in it's stand state, development is normal. I have seen some people's results here that do not have this problem, but seems that most do have this issue. Is everyone using a Patterson tank for their film developing? maybe better results with a single metal reel tank?