Are you planning to use that humidity level? Many of us have found that we have a much better hatch if we incubate at 30 - 40% humidity until lock down. Does that bator have a fan? I also suggest that you calibrate a thermometer against a good medical digital or bulb thermometer and check to see how accurate the thermometer built into that bator is. Many hatches are ruined by faulty calibration and too much humidity.