I have had two different hatches the last two weekends Both hatches from the same flock(s) Delawares and split Sussix's. #1 hatch I hatched in my stryofoam bators with still air in lock down. #2 was hatched in a sportsman bator by a friend. I can't believe the differance in the chicks!!!!!!!!!!! The second hatch is a lot stronger, more active and just better chicks. Any ideas on what is going on with the differance in the chicks.