After Neopan 400 went RIP, I tried HP5+ with Rodinal. I finely found a good ISO/Dilution mix that works for me... It gives a nice Tonal Range with great shadows and good highlight, and everything in between..
HP5+ // ISO 160, Rodinal 1:25.. I make sure the temp is under 20c to allow over 5m developing time. at 10s agitation every 60s. (Use the the ISO 200 times in Massive Dev Chart for ISO 160 rating). I would assume, I can over expose by 1.3 stops for the other speeds listed (200/320/400/800/1600/3200) for HP5+
I use a Plustek 7300 with SilverFast 8 (32bit--the 7300 doesn't support the 64bit version 8), but, with Ver 6.6 I can scan up to 16 times in "Multi-Scan" to reduce grain, if that is what I want. I use no more than 4 though... Ver 8 has 2 scans in this mode, and it can't be changed. They claim it has a different way to scan and is better than the Ver. 6.6 "Multi-scan" in results... I am not convinced.
I also like a stable workflow. it took a few rolls to get it down with HP5+.