10/17/2012 - Arizona Junior Fall Classic Castillo continues to show plus abilities in his baseball tools. At 3B, feet are quick / athletic as he attacks balls and plays through well with his body, displaying soft / clean hands. Arm strength is solid with throws displaying life, accuracy, and on line carry across the diamond. At the plate, Gianni continues to shine through an athletic setup. Hands are quick, flashing bat speed through a level swing path. He shows a feel for the barrel with the baseball jumping off his bat when centered. Power numbers will continue to increase as he learns to use his lower half more through the swing. At the event, he was 3 for 8 with a 3B. Mental makeup is a plus as he is aggressive and plays hard with a positive attitude.