we know it's possible to develop a line or family of birds that has strong bodies in all the birds, solid muscle. There are always smaller birds going to pop up, as long as they have the solid body like the larger ones they can still produce the body muscle. My experience is "Like produce Like"
he is unfortunately not making the type of sense he needs to. First no hot birds to short birds but he will can take a bumper and mix it to a non bumper? These faults are the same, however it could be feed related that is causing this bird to bump. He might know more than anyone else about this in his own birds but his examples don't work to me. You can always expect that a bird that is from two stable birds might have most of their babies that are solid performers but 1 that is exceptional in the air but bumps then we might try it out. He also talks about not picking birds for stock out of the flyers, but from the ground.
D,H, thanks to you R,A, stop making video’s you and other smoke us out, you couldn’t say something nice, you in life time couldn’t make a free video like that even if you tried, I got new video’s coming out do not watch them, to make a video like this take alot of time we put work into it,