If the eggs aren't shipped, I usually turn on my turner after 24 hours. If the eggs are shipped, I wait until day 4 or 5. Most people don't wait quite that long to turn on the turner, but my best hatches with shipped eggs occurred when I waited longer. I've looked everywhere for the research article I read about this, but that was a year ago, and now I can't find it anywhere.Me and dblea put our 10 marans in this morning! This is our second time incubating and first time using the LG still air incubator! So for you experienced setter, when do you guys start turning eggs... I was told around day 3 or 4?