It was not until 1934 that Dr. Solanet was able to firmly take control of the breeders association. He set a new goal for the breed with a shorter, more compact stock horse which emulated the Chilean Horse breed that he admired so much. In 1938, 70% of the registered crioulos were culled because they did not possess the phenotype aspired by Dr. Solanet and his followers. The new breed standard, about which he had written in 1928, was finally made available to the public once he was assured that the breeders were more united in their breed objectives. It would not be until 1957 that the registry was closed for Argentine native breeds, but the registry has remained open for the Chilean Horse breed that has been so influential in giving shape to the crioulo as a better stock horse. Nevertheless, the breed maintains its own identity in a taller, leggier and squarer body conformation with a more angular hock that gives it the long stride it requires to cover the great distances in the flat Argentine plains known as "Pampas". The modern crioulo head has a straight facial profile and a shorter muzzle with longer ears than is typical in the Chilean Horse breed.