It all comes down to what you want in a dog. There are well rounded breeders out there, as well as short sighted breeders. There is also breed type. In Dobermans (for eg) there are 3 distinct types. South American, North American, and European. I could give you multiple examples in each type that are Am Ch's and at least SchI. Same with ATCH and Ch examples. There is no black and white. As for opening stud books, I am against that. It sounds great but we are making good strides in testing and breeding away from diseases. It is not as easy as simply breeding to another breed. Genetics does not work that way. If we could mix breed to cure dobermans of cardio I would say sure, but it won't happen. The puppies can/will still get the cardio genes from the dobe side, not to mention any issues from the out cross breed. D&Co I think the idea is good but not as simple as you are making it out to be.