Never shot or developed D400. First let me say: I LIKE Rodinal! If I can use it, I will...BUT, I'm not blind to the fact that other developers may work better with different emulsions... Second: I'm not averse to grain...like it in most bw work except for portraiture. With that said: I've got a couple of rolls of Delta 400 waiting for a dip/plunge/bath so to speak. Images and scenes vary, so I'm looking for middle ground here. So, what does D400 like best? My other (inhome stock) choices are: a package of Perceptol waiting to be mixed, D-76 in the same state and a bit of Ilfosol S leftover. If there's a strong argument for another, I'll run and get it, but...let's face it, I'm cheap! and would prefer to use what I have. Any suggestions? Experiences?