Just because a man has experience with one bloodline of dogs in a certain breed don't mean he has any experience with the next bloodline are breed . All bloodlines are different in its on way and it goes the same for different breeds . Some bloodlines may turn out to find hogs at 10 months old then some bloodlines may not mature till later on like two three some four and five yrs of age. Some may be finding hogs at 10 months old and burning the woods down only to fizzle at 2 yrs old and never do much after that . Some bloodlines may not find hogs and make any kind of dog till they are two three years old only to get better and better as the years goes on and be great dogs . So experience in one bloodline don't make anybody a expert are experience in another bloodline and thats with the same breed of dog and it don't have to be a entirely a different breed of dog it could be the same breed but of different bloodlines. Names on paper don't mean Jack and the paper don't make the dogs the dogs make the paper until then you can wipe your butt with the golden papers .
While I do agree with your reasoning and obvious knowledge of what you are talking about, I have to state that if a dog isn't hunting and maturing until 3 or more years old then it is a no good around here. There are WAY to many lines of dogs that progress and hunt by 1-1 1/2 years of age to deal with dogs that you have to wait 3-5yrs on, just my opinion.
I agree man 100% . I like my dogs doing well by 20 months then by 30 making a real dog. From 30 on they should be great hog dogs improving till their life is over. I dont agree with anyone that culls a year old dog but thats just me . If a dog is not making no progress by two then am pretty sure he is gonna go on the chopping block around here he may get some more time if he is showing intrest till around 30 months but you can tell if it has not clicked in him are he is just assing around showing no intrest he is pretty much gone. Its a judgement call . Been many many a great dog culled early in life . I dont like late bloomers myself but sometimes the best comes to those who can wait . Its not so bad on me around here the waiting because I have dogs that I have hunted for years and all know the ropes and are finished type of dogs and got new age groups coming up every year that I breed for myself to keep the young dogs rolling and coming as they come and go but for someone that dont have that and needs a dog now I can understand not wanting to wait but if this is the case a pup is not for you go out and buy yourself a good started young dog then you are way ahead and the pups and young unstarted dogs get a fair shake .