[blockquote]Testing of a dog with another dog is done, as I've already said it in my previous posts here, for determination of dominance of dogs and is done usually when the dog is older then 12 months. This gives the shepherd information about the dogs for mating, 'cause if he doesn't have a dog that is the strongest, bravest and most dominant, he will be pairing his bitches with the one that is, and the winner on those kind of tournaments is the one. [/blockquote] This I don't understand. Why are the winners of these tournaments chosen for mating? They are perhaps the most strong and brave ones, but not necessarily the best LGDs. Ability to bond with flock, and not to forget the ability to discover threats by using nose,eyes and ears is much more important. Another important skill is to analyze, or in other words figure out whether an object is a threat or not and react accordingly. Like I said earlier, you don't have to be the bravest or strongest to be defeat predators because LGDs often work in teams.