I enjoy some of the facts, thoughts, and ideas that were in the book, BUT there was nothing there about breeding that 99% of anyone could figure out. All his 'formula' is is basically breed a mare that earned and race very well with a stallion that earned and race very well, and you PROBABLY will get a foal that will earn and race very well.
To be frank, well DUH. Breeders have been doing that for CENTURIES. I don't think there is a breeder out there who does not take his best mare and try to breed her to the best stallion they possibly can. I might why would you do anything else?
Mr. Estes made some wonderful contributions to the Thoroughbred breed and his AEI charts are interesting and a good tool, but his breeding advice is not that great.
Still, it was an easy read and was quite interesting, but I was hoping for something more in-depth, like possible pedigree factors, different lines having different traits, not just 'breed a racehorse to a racehorse and you should get a racehorse'.