I have a question for all of you breeders out there. I have a bunch of feeding cards that I am using to keep track of my BPs but when breeding, how can I number them in a way that I know who is whos parents, grandparents, cousins, and so on?? Basically, how can I use a number system that tells me what generation they are, what line they are from, etc.?!? What system do you guys use?