breedin ?

i respect your opinion no doubt about it but you clearly stated that you would show me flawless dog and if the dog isn't what i would consider flawless then i would disagree with you on the token my ? is everybody here bred a dog that they thought had no flaws because At the beggining i asked if y'all thought it was possible to breed a certain trait like open mouth out of a dog if that was the only trait you disliked i didn't want to venture off on perfect dogs i guess what im actually askin everybody out there had dogs that they considered not to have a bad flaw in em and didn't breed anything out of their bloodlines ? and their dog they started with has the same traits that are in your dogs now and you are satisfied with your dogS and all their traits im not tryin to argue just want to know how everyone decides what to breed because i have a ybmc line that has been goin on since my grandpa had it and its been line bred for all those 50 somethin yrs and i am satisfied with dogs i just believe that there are ways to make a line of dogs that aren't already created im just askin