Thank you for the replies. I gather that it does not matter about the down time between processing prints. Once the temperature in the lamp is where it needs to be, then that down time, assuming it's not too long is not a problem? It can be 15 to 30 minutes to dry down and then viewing the tests------I assume that could be a problem and I should remember to turn on the lamp far enough in advance of the next exposure? I try to strive for consistency in everything that I do in the darkroom, so your comments are very helpful.