Different bloodlines is an area that I am very uneducated. I know my question can go on all day and there are probally endless probabilities. I would like a APBT that has the potential for great stamina,agility, rednose/fawn or even champange color. (although i like the tan the most) but I want it to have the potential to be very muscular but lean at the same time. A wonderful show dog. Something like sadie or bahamutts. What are the lines ( x ) and where can i find them. I would like pictures. I cannot be more specific cause i dont know what else to say lol.