I personally did not know his background but i do know of the kennel he was breed from. And my vet has always been his vet since 8 weeks when the original owner brought him home. That gave me a really good idea of his background. I have not breed him yet. we have just completed all the tests to make sure he is healthy in every way possible because he just turned 2 a few months ago so he is just now able to have most of the test done. In my opinion Bear would not be suitable for show. Structure wise he is in proportion but his markings are not quite what I would take into the show ring. Showing takes a lot of time and I have 4 human kids 6 dogs a cat and a large # of fish ( 100 aquarium) not counting a full time job. I am a single mom, Just to many things to be able to show anymore..I would love to show Penny, Jazmin, Misty, and (or) Bo. The female i chose for Bear was to compliment his weaknesses ( markings ,in my opinion i would like to see a little more white in his chest, the female i chose has almost 1/3 ratio of white). I do know that Bear is on the larger side of the boxer spectrum and that is not always best but his other qualities I would like to see in the pups. I will breed him this first time and depending on what we have will depend on weather I use him for a stud again. As for what I look for in a breeder, A lot of things i guess, I like to talk to them personally, I like to see where their dogs are raised, what they look like, how they greet strangers, try to judge there temperament, Vet records, I like to talk to their vet ( not all breeders will give you permission for that),I like to see their background if i can, and a lot of it is just judgment i do put a lot of time into selecting a new puppy. As for testing a lot of that is up to my vet she is good at what she does, I do a lot of research on what testing is available ( try to keep up on any new testing that is now available), blood work, x rays, ultrasound,. I don't enforce a spay or neuter contract although sometimes It might be a good idea but I think that is really up to the new owner, there is a lot of controversy over that ( I know there is a lot of unwanted animals out there, that are not taken care of) I have a lot of opinions on that subject.