I am going to hatch eggs in my homemade incubator, and a borrowed brinsa to see which hatches best, would it be fair to put shipped eggs in brinsa and my own eggs in the home made incubator? That is how it will go down. I have hatched in the home made one already. I know nothing about a brinsa first time. I will up date as I get my brinsa, and shipped eggs.