Thunderello, second in the 2002 Breeders' Cup Sprint (gr. I), has relocated to Howard and Susan Kaskel's Sugar Maple Farm near Poughquag, N.Y.The 5-year-old son of Montbrook stood his first two seasons at John T.L. Jones Jr.'s Walmac International near Lexington and covered 91 mares his first year and 92 his second. "Now that he has been at stud for two years, he has filled out in all the right places," said Sugar Maple manager Dan Hayden. "He is a big, handsome horse."Thunderello, who was produced from the In Reality mare On the Square, broke his maiden at Saratoga as a 2-year-old by 14 1/4 lengths and won the Gallant Bob Handicap at three. His runner-up effort in the Sprint came to champion sprinter Orientate.Thunderello, who previously stood for $7,500, was bought by Windmill Manor Farm during his first year at stud. His 2005 fee will be announced later.