I don't know about the Unicolor drum, but when calculating times for the Jobo tanks you need to remember that there is 20 second pour stage that must be counted in your development time. My normal Rollo Pyro development time at 72 degrees F is 6 minutes 25 seconds, plus the 20 seconds pour out, plus 20 seconds pour in water to stop development, plus pouring that wash out, plus a second wash of water to stop the development, and pour out, then pour in Fixer. No other steps in the Rollo process are critical, but those are.

John Powers