Right, We have 2 incubators one is the Brinsea Hatchmaker (still air) one is the Octagon 20 advance. The hatchmaker we have have done 2 hatches and had a 90% hatch rate then a 100% hatch rate. The Octagon is a completly different story. Chicks were hatching last night and 6 had hatched, so we go to bed and get up then the others we found were all dead in shell with most of their yolks not absorped. What is the reason for that? We also were wondering why the still air incubator Brinsea Hatchmaker says in the intructions to keep it at a higher temp then the Octagon 20 says?