I have three laying hens now, my incubator should be here today. Have a couple questions though. Should I wait a few days and collect enough to put a dozen in while I get the thing calibrated? Also was wondering if it matters if i put in 3 a day and they hatch 3 at a time in there or wait? If I store them how long can I wait until I need to put them in there. I brought the three in today and they are sitting on the counter right now.