Set 42 eggs in styrofoam hovabator to try dry incubating. Removed four at day 12 after candleing. moisture stayed at around 30 to 35%,but dropped below 25% for a few days.I somehow resisted the urge to add water.Today is day 21 and eggs are hatching like clockwork. Ten have hatched so far,several more have pipped. after the first 2 eggs started hatching,the moisture level went from 35%to 92% in a couple of hours,im debating whether to vent the moisture down a little,i think i will just leave them alone and see what happens.