I have to disagree to agree does that make sense? I breed what I like to call the costa rica cMomet I use new Hampshire red roo over white leghorn hen and get a sex linked offspring much like the Hendrix gen. ISA , my chicks are red and white boys being white and girls being red at hatching feathering out very similar to the ISA with white fleck and under feathers I am om my second gen and they have performed marvelous , they start laying at 18 to 20 weeks build awesome body mass like the nhr and they have averaged a lil over 300 eggs per year ( first hatch ) with the second group now at 13 weeks old we hope to do better on production they have great food to egg conversion and forage at free range quite well , this month I will be importing a German new Hampshire line in a effort to bolster my breeding stock and improve on body mass so far so good for a guy like me ,,, it is shockingly easy with the right tools available to us here at byc