I have heard it be said that, for optimum and consistent performance, developers should 'ripen' or 'cure' 12-18 hours after preparation. It seems this entails just being contained in the flask coming to room temp and beyond. Is there a photo-chemist out there who could comment on this procedure? Thanks, Harry. ============================================================================================================= To unsubscribe from this list, go to www.freelists.org and logon to your account (the same e-mail address and password you set-up when you subscribed,) and unsubscribe from there.