I shoot HP5+ at 250-320 and develop in Rodinal 1+50 at 18 degree Celsius (!) for 12 minutes. 8 (rather gentle) inversions after pouring in and 2 slow, gentle inversions every full minute. 3, if the lighting was really flat.
Beautiful tonality, shadows, midtones, highlights not blown out (finally, took me a while to get there, hence the dev process rather on the edge of underdeveloping). Prints nicely on G3 (Ilford PE & RC). No visible grain on 8x10" prints from MF. Loving it.