Bloodlines

We have been breeding seriously for about 10 years. Before that we held a particular line of dog in Oz since 1986. That is the line that has fed our family of dogs...At the moment some people out here call out dogs after me ie Makim dogs but I don't call them a line yet. They are a family of dogs. Out here, lots of blokes have started calling there own backyard dogs a 'line'. Like all hunting etc, people are into it for their own reasons and so it is with naming types of dogs. For some it is about the money, for some just ego, for others it's a serious effort tp produce hunting dogs.
Whatever the case, the name of a family or line doesn't count unless hunters are saying the dogs catch pigs. People can call their dogs anything they like, but field work and independent assessment is what matters.
On the original question. I'm saying at least 10 years before you can say a line is forming up and longer than that to show it is properly stable.
And if someone is prepared to claim a family or line of dogs, there is no reason you should not expect an airtight moneyback guarantee on the dog's performance. Anything less and the breeder doesn't believe in his dogs....
Cheers.