Hi, i shot some film last weekend when the sun was behind a higher fog layer in the air. It was one giant softbox. Normally i develop my acros in pyrocat HD 10min each minute 1 inversion. In the past i did some tests to extend the time for increasing contrast, but i found out that increasing time alone was not the solution. I guess the 1 min inversion did grow zone III just as fast as zone VII, so only the overall density was increased. What I want to do is develop at 9min, and inverse 1x 30 seconds. This will let the zone III become at the same level as normal(10min 1xmin) and zone VII gets more fresh developer, so the contrast would increase. Is this a good theoretical brainwave of am I missing something??? Thanks and have a nice christmas.