HD is more of a problem with the British show bred rubbish, breed average is 19, I have a dog from Belgium imports that is a 4.
Have to agree with Simoman in that Majority of GSD that suffer from Hip Displacia or Health problems are mostly show stock, i.e larched, or sloping back,slight frame,short coated black & tan.
My own Gsd are all heavily boned,flat backed,long coated,will not back down from no one,Grand parents are all German lines
It would probably be difficult to see what GSD made the make up of the Lurcher that is for sale,as has also been said there is a lot of shit GS