Thank you Andrew for validating what I have been doing for many years. Now, this may be overkill, however I have sometimes re-read the target a week later. I saw a small difference in ColorThink 2.2beta. But I did not know whether the difference was do to reading error. Thanks again, Andrew. David B. Miller, member, Millers' Photography L.L.C. 3809 Alabama Street Bellingham, WA 98226-4585 360 739 2826 email digitalimaging@dnmillerphoto.com 24 hours should be fine. I've measured targets directly out of the printer, an hour later, next day. Out of the printer, depending on the unit and ink set, I've found just a few high dE values, if memory serves, most in darker blues and such. The average dE is pretty low but if you have the time, 24 hours seems to do the trick. For dealing with out gassing prior to framing, you should provide more dry down time... Andrew Rodney http://www.digitaldog.net/