I've got 30 odd ex commercial free range layers, they are Columbian Black Tails. As expected they lay really well. They are running with 3 big Maran cockerals that were hatched last year and are working. I'm thinking of hatching a few out in the incubator, would it be worth doing? OH seems to think they would hopefully make quite a good cross combining the good laying with the slightly heavier meat bird, but thought I'd ask you all first and see what you thought.