This is amazing information about film developers that I have gleaned in my short time on APUG. And in all categories, each has a nuance of advantage. Mind-boggling, actually.yet, for roll-film, I have yet to see any advantage or combination of same that there's anything any better than Microdol-X, 1:3. I'm speaking of roll film now, as the limited experience with it as a sheet film developer is something I would not recommend, as I have found it to be a developer prone to stain unpredictably. But in roll film there's nothing like it. For what it's worth, 41 years of using it has convinced me.