I'm finding PMK especially helpful for scenes with a wide contrast range, i.e. long tonal scale, because of the highlight preserving effects. I have some prints that I'm very pleased with with film done in D76 and others done with PMK. It would be a very interesting comparison to shoot two rolls of the same subjects at the same time, etc, and develop one in PMK and one in D76 (or whatever) and see how they do. I might try this some time.(posted 9226 days ago)Not yet having done this A/B comparison it is my impression that PMK does do what is advertised: excellent retention of detail in the highlight areas. Not every photo that I shoot takes advantage of this trait, so many shots look ordinary. But if you shoot something where the highlights really show, like the surface of water, you can get very pleasing results with PMK. I also find I'm not needing to burn highlights to get them to print. I like the stuff.
Get the liquid form, it's safer to handle, and wear rubber gloves, then you have no toxicity worries.
I like Delta 100 @ 80 and Fuji Neopan 400 @ 200. I develop the Delta 100 for 6min 20sec at 70F. The Neopan for 7min even, temp of 70F. These produce good negs for my condenser enlarger, gives Zone VIII density of about 1.25, near as I can measure it.
I've never tried Delta 400 but that is my next project.
Don