Another heavily used modern horse was Blackhome Duke, who was not of Showtime breeding. Duke was heavily line-bred, and was the perfect example of what can go so very right with the practice. Careful use of of linebreeding will concentrate the genetics used, making them more potent. His sire and dam were sired by the same stallion, Rolling Acres Leonet, out of unrelated mares. Blackhome Duke was the sire of scores of champions and a number of amazing broodmares. His best known son, Windermere King Cong, is following in his sire´s considerable hoof prints. Cong´s dam was the Mrs. R.L. Robinson mare Camille, many times a hitch and halter champion in her own right. Three of Camille´s four grandparents were sired by Justamere Showtime. Another Duke son, Blue Ribbon Farms Hercules, was crowned World Champion in 2002 and has proving to be a good breeding stallion.