Guys, it has been years since I used Rodinal. Mike W. Was very kind to send me a couple of big bottles so I did some testing with Ultrafine (rumored to be fp4) and I got some weird results. So my questions it this, does Rodinal become more active as it gets a little bit more oxidized? I made 500 ml of 1:25 developer and did testing developing times at 14, 11, 7, 3 minutes...well, the 14 and 11 minute are almost identical, with the 7 and 3 not far behind....what gives?