What a great combination! Following up on the questions below I tried some HP5 rated at 800 in Diafine. I'm looking at some prints right now and I'm amazed at how nice they turned out. The grain is no more or less than I would have expected with a mid-speed film but it's super sharp, the tones are nice and where I want them and the highlights are perfect.(posted 8388 days ago)Next project is to try some Tri-X at 1600.
Yes, I recommend Diafine!