Hi folks, I am a relative newbie to photography B/W darkroom use. I have a Durst M670 and I use a Mamiya RB67 with 65mm and 127mm lenses and some filters. I would like to learn how to get quality, repeatable results with Pan F Plus and dilute Perceptol. I have bought 20 rolls of 120 film and 5 boxes of Perceptol along with stop, fix and wetting agent. I also have Multigrade paper and developer. Any users of this film and developer?