These birds are a hybrid of 4 parenting birds, and breeding may produce most recent father or mother offspring????? Some info I got has the bird parenting in some code fashion.......... If anyone knows this stuff, I can send the link. Im curious to see the link Pig Farmer please post it up. As far as stabilizing them goes its not impossible it will just take some work. The problem your going to run into is hatching enough chicks and raising them to see how they turn out to get enough chicks to serve as breeding stock because they have all the traits you want and actually bred true to the FR or darn close. The rest are culls obviously. But if 5% of the hatch is a recreation of the FR and you hatch 100 eggs thats 5 breedable stock to work up from. Who knows you might get 80% its impossible to say. But thats the one thing to be aware of is getting enough stock either by volume of chicks hatched or by hitting it lucky with a solid breeding that is true to the standard you want to work towards.