Variations of this question have been asked and I've read most but I'd like to ask about this specific combo for pt/pl and POP specifically. I am interested in hearing people's experiences using HP5 and ABC Pyro (not a different pyro variant) to produce negs for pt/pl and POP (Azo is applicable as well).
There are two very different schools of thought regarding HP5. One says that it shoulders off and blocks up highlights. The other says that the shoulder is negligible (hence barely a shoulder depicted in the data sheet chart) and takes very well to increased density without blocking up. I have to assume that these drastically different reports come from the variations of using many different developer combinations. As we know, the curve of a film is different for any film/dev combo and the data sheet charts are a starting point based on recommended developers from the manufacturer. So, lets move past all of that and get to my specific question. I would like to hear from people who use or have used HP5 in ABC Pyro, standard and non standard ratios (1-1-1-7 VS 2-1-1-15, etc), to print in pt/pl, POP, Azo, processes that require an expanded negative contrast range.
I'd like to try to keep this concise and on topic so lets try not to spin off into into other things.
As an FYI regarding my purposes, I shoot 11x14 primarily and some 8x20 and 8x10. Film availability in 11x14 and 8x20 is for the most part limited to Efke Pl100 (which I use and understand how to work with) and HP5. Those are typically the two films that don't require a special order and long wait in my experience. I have two boxes of HP5 in 11x14 (can't get ahold of Ekfe at the moment) and I'd like to get the most out of it.
I look forward to reading your thoughts. Thanks!