For 80S, as 'piu' above mentions, I found the best results with Adox A49 1+1 smooths out the contrast with good tonal range, I really like the film with this combination especially in 35mm very fine grain. I developed one roll with Studional 1+31 and that gave good results too. Neofin Blue also worked well taming the contrast.

I have found 400s to be challenging and as comments above is only really a 200 film. I found a recipe rated @200 in RHS 1+15 for 5' 15" can't remember where search here or on rangefinderforum.