Chance, how can you breed out the cat? Won't it be there no matter what? Especially if you are line breeding that bulldog . I might be thinking about someone else but didn't that bulldog blood come from your grandpa?
This line of dogs came from a hunting buddy!! They are not line breed we just kept breeding them to pit x pit and the lepoard coloring comes in half of every litter!! We just are very selective on what kind of pit we cross them to!!! We have never line breed any of them but it has crossed my mind!! Just not going to keep a yard full of catch dogs to breed! My hunting buddy keeps 2 lepoard pit gyps and when I want a pup I find the right male dog to breed her too!! I have 2 lepoards on my yard for catch dogs!!
Now all my cur dogs are line breed and came from my uncle!! Every cur on my place is related!!
The male I use is a great great great gradson of the 3/4 pit 1/4 cat!! That Jermey started with!! Every cross after that was with pit!!
So yes the cat would be breed out of them!! Just the color stayed!!