Extreme angulation doesn't actually play much role in HD. Some of the breeds most prone to it are dogs with little angulation. Plenty of rather extreme show GSDs are OFA excellent. Dobes seem fairly low risk for HD according to OFA stats: 122nd out of 160 breeds (with 1 being the highest % of HD and lowest % of excellents), 18% are rated excellent and 6.2% are rated dysplastic. Compartively, Pugs are #2 and have 0% excellent and 64% with HD. From: http://www.offa.org/stats_hip.html From my understanding, the biggest concerns with Dobes are ones which can't reliably be tested for: cancer, heart problems, immune issues.