We've done enough reading and studying about still air incubation, with this unit, to be confidently confused and joyfully filled with doubt. Doing the dry run today and making adjustments tomorrow with a new hydrometer and thermometer. We get our Barred Rock eggs Saturday morning from the hatchery, and they will go in that evening or the following morning. Photos and comments will follow the process from initial setting to hatch. We are only doing a dozen for a fist run and fist time using an incubator.