I've heard "STORIES" that he's no longer sterile and they've bred off a son of his or sold semen off his son claiming it to be his. It seems to me every time a dog makes a name for himself it isn't long until the stories start to follow. I tried to buy semen from KC and he asked for references, I sent some well known guys that could vouch for us and he never got back to me, I done some research around that time and that's when I heard all the tales from different guys.