This post was a no brainer for me at first! If a cd quits by choice of his own or bays he is a cull IMO. But, I do believe some cd's take longer to mature. My 2 cd's started completely different. My pit pedro caught the first hog he ever saw and will stay caught until his last breath. But my AB chief took until he was almost 2 yrs old to mature into a finshed cd. he can hold as good or better than pedro now, but most times he does not have to be broke off. Just a spat on the nose usually gets him loose. With that said, if either of my cd's ever let go before I want them to it will be their last time.
Most larger type dogs mature slower and sometimes do not start as early as the smaller type dogs.
