I have and crossed one easter egger rooster X 4 ISA Browns, two light brahmas and an easter egger hen that lays a blue egg. One brahma was broody so I hatched one day's lay... one brahma egg, one blue ee egg and four ISA brown eggs under the broody light brahma. Of the six eggs, five hatched. One died at hatch, one died on day two. I believe the chick was stepped on during a thunderstorm. It was a large healthy chick that had feathers on its legs indicating, to me, that it was the brahma chick. One brown egg did not hatch so I was left with a survival rate of 50% and a hatch rate of 83.3%. Of the three surviving chicks, two have slate gray legs I believe that I have one Ee X ISA- rooster, one Ee X ISA-hen (due to the sex-link trait characteristics of ISAs and deductive reasoning) and one EE hen which is gray as a chick and has slate colored legs. I will post some pics and look forward to the opinions of the community and experts