Another interesting scenario is that inasmuch as Bobby and Pat really despised each other, when their dogs were mated together; whether the pedigrees were represented properly or not, it always produced fantastic dogs. Here is but another example, this time on the CH Bad Billy ROM side:
http://apbt.online-pedigrees.com/mod...e&dog_id=39107

CH Senorita is the sister of Bill Bancroft's Tina, who was the best bitch Bancroft ever owned and arguably even better than CH Senorita. Tina in turn became the double bred granddam of the great Schoolteacher's GR CH Shep dog.