followup: Mixed a new batch of XTOL. Noticed that it was Solution A that does not dissolve well. Kodak, upon calling, said to mix slowly. Add water, add powder gradually. This didn't get EVERYTHING dissolved. I heated up the mixture. Not until I got to almost 100 deg did I get it to ALMOST completely dissolved. I added 'slowly' solution B. Ran a strip from 35mm TRI X, 1:1, 6 min (according to their charts), in my JOBO. Very nice contrast; very nice negs. In thinking back to all the times I've mixed XTOL, mixing to completion has always been a problem. I suspect, I had too much undissolved and, hence, the thin, unusable results. We'll see how the 120 (ISO 320) turns out. Shouldn't make any difference. carol(posted 8417 days ago)