I'm thinking of getting a pup from a 4-5 linebreeding on arthus. Can you tell me what the advantages are risks of this are? I read on a post that linebreeding on arthus is risky, and wondered why. I've been told this dog is very hard and strong and a linebreeding on him should be awesome. The pup i'm looking at is 6 months and of the 3 the breeder prescreened for hips and elbows all were clear.