About "good dogs" quitting:
I like this. I really, really like this. Isn't it true that you need gameness as a foundation for your yard? Before & above anything else? I'm just spitballing here, but can't you "layer on" whatever traits you might like to have in your dogs, whereas gameness...that's pretty much irreplaceable, isn't it? I always thought that was supposed to be at the bottom of all bulldogs, regardless of how hard he can bite or how powerful a wrestler or how smart he is or etc. I'll be the first one to admit I am no breeder, but to me you spell bulldog G...A...M...E. That's just me, though.