Just years of experience in the dog game...nothing more.
I think when you say something like that you should back it up. BTW I don’t breed cockers, so I have no skin in the game. Just tell me what makes you say that. In fact, be more specific, when you say professional breeders, who are you talking about? A pro is someone who makes money at something, so I suppose if you toss in puppy mills you might have a point there.