I'm new to the dog world so I've been reading, researching, and analyzing peds. I noticed while trying to trace some pretty famous bulldogs that bloodlines are being diluted by continuously crossing. I understand why crosses are done but I would think you would want to have some inbreeding in order to keep a inventory of the original blood on your yard for future use not to mention pure preservation of blood. Like I said I'm just a rookie trying to funderstand the strategy behind breeding and get some other points of view.