Depends on what you want to breed, I guess more BB fawns, right?If you don't have a BB male (fawn or grey) you could pair her to a Fawn male to breed splits.And if you would later on pair her also to another fawn male from a different bloodline than the first maleyou could cross youngsters from both males and breed from them fawn bb males and females, but also split's and fawns who are not split.