What can you tell me about the refinal? I only use rodinal and I am very happy with it but I wonder if the refinal could be better with some films/asa combinations. Should I try it if I use usually 100-400 asa film? And if I push 400 film to 800 or 1600 asa? The films I use the most are agfa apx 400 and ilford HP5 plus in 120 roll.