The Dalmatian's feet are round with well-arched toes, and the nails are usually white or the same color as the dog's spots. The thin ears taper towards the tip and are set fairly high and close to the head. Eye color varies between brown, amber, purple, and blue, with some dogs having one blue eye and one brown eye, or other combinations. By the fifth generation in 1981, they resembled purebreds so much, Dr. Schaible convinced the AKC to allow two of the hybrids to be registered as purebreds. Then AKC President William F. Stifel stated, 'If there is a logical, scientific way to correct genetic health problems associated with certain breed traits and still preserve the integrity of the breed standard, it is incumbent upon the American Kennel Club to lead the way.' The Dalmatian Club of America's (DCA) board of directors supported this decision, however it quickly became highly controversial among the club members.