I find it works well if you put two eggs in every slot it takes a few rotations to get them set right to where they are not rolling end over end but it works even though a quail ring would be great, also my hatch rate with this method is about 75-85%
so hey everyone my dog has a vendetta against chickens if i didnt pay so much for her i wouldve gotten rid of her already so anyone got any ideas how to deter a dog from killing chickens