I've tried toning palladium prints in Selenium, and gotten VERY mixed results. Both times I toned using the same working strength, 1:16. In the first case, it gave a beautiful result- improved dMax, and added a slight gloss to the print (I'm printing on Bergger COT320). The second time, it made the print much more matte-looking, and changed the print tone to a rather sickly-looking yellowish-brown instead of a nice chocolate. Also, in both cases, toning in Selenium seems to have killed the selenium bath after just one print. Does anyone else out there have any guidance on this, or should I just stick to other toners like gold chloride? On a separate but related thread, how long does gold chloride stock solution last? I have some bottles of Berg's gold chloride toner I bought back more than seven years ago but haven't used. It is unopened. Is it still useable?