Barry, where do I start and how do you explain the unexplaineable?
In general I used FP4, then when it came out FP4+ as my regular film in 35mm land with HP5+ as my fast film. Once I discovered Fuji Neopan 400 I pretty much stopped using anything else and just used Neopan 400. Unbelievable film. I still have around 150 x 36 exposure rolls in bulk Neopan 400 in the refrigerator. With my usage of 35mm film these days, that stock may see me out.
Sheet film is completely different and it's not just the film, it is the tonality of the negatives combined with the far bigger negative area. My go to sheet film is Ilford FP4+ and I know it quite well. I am not a prolific photographer as I have quite a varied interest in a plethora of other activities, but somehow, I have managed to go through 4 x 100 sheet boxes of FP4+ in the last 5 years; just counted the empty boxes in the darkroom.
In the same time frame I have used about 1½ x 100 sheet boxes of HP5+, almost 1 x 50 sheet box of Foma 100, nice film but not to my style. 1 x 50 sheet box of Foma 400, nice film but not to my style. 1 x 50 sheet of Foma 200, which I like very much. I get a similar results with it to FP4+, but as with all the Foma films, it is prone to image degradation caused mostly by handling issues. Very nice film and the sheet film I use when coaching people in aspects of B&W film photography.
Bergger Pancro 400 is something else again. It is unlike any other film I currently am able to purchase. The closest film is Fuji Neopan 400, but even then with Neopan 400 in my hands, it is unable to hold shadow and highlight detail as well as Bergger Pancro 400.
If you look at these samples at the largest size on your screen, not the click and view size, which were taken with Bergger Pancro 400, you may glean why I really like this film. Shadow detail, highlight detail and resolution are reasonably good. Plus there a something factor with regard to the overall contrast that you get when you develop this film properly. Properly is 17 minutes or whatever it is they suggest, it really does like full development which I assume means the two different emulsion speeds are properly developed.viewtopic.php?f=13&t=1441download/file.php?id=586&mode=view
To get the same kind of contrast look in FP4+ I need to over develop (so to speak) on a flat day and expose as though it was a 200 or 250 or 320 film. For bright conditions I usually pull FP4+, essentially doing the reverse. With Bergger Pancro 400 film I work out my film exposure, usually finding a middle ground between shadow and highlight at 320 ASA which is what I rate this film at. Then fire away. No developing change from the stipulated 17 minutes from the manufacturer in D76 1:1.
Once I worked out that regime, I have not really had technical failures with this film.
Hope that helps.