HALLANDALE BEACH, Fla. – Javier Castellano learned his lesson. Four weeks ago, in the Holy Bull, the four-time reigning champion jockey said he was too impatient with Gunnevera and believed he cost the colt his best chance. So, in the Grade 2, $400,000 Fountain of Youth Stakes at Gulfstream Park on Saturday, Castellano was focused on taking his time before striking.