All arguments only support, that ZVP is a great endurance test. Fact, that working dog need a endurance too (not only) is same true, like that grass is green. But as I wrote - working dog need not only endurance, but healthy hips, good nose, excellent teeth, healthy heart etc. But its no argument, that teeth test, EKG or HD test are the working tests !!! Working test means generally test, which testing the final possibility of using the dog by work. ZVP test says only one - dog have one of the 100 basic qualification to POSSIBLE TO BE a working dog. Nothing more. Howg