Business slumped at the Ocala Breeders' Sales Company's spring sale of 2-year-olds in training, which ended its four-day run on Thursday. Compared to a year ago, the gross revenue and average price for the Central Florida auction declined by 15.1% and 13.6%, respectively.OBS reported that 673 horses sold for a gross of $15,332,100 and an average of $22,782. Last year, 685 horses grossed $18,058,600 and averaged $26,363. The median price for both years was $15,000.The top-priced horse on the final day and for the entire sale was a son of Grand Slam that brought $280,000. New Jersey bloodstock agent Buzz Chace, acting on the behalf of West Point Thoroughbreds, purchased the colt from M & H Training and Sales, agent. The colt is the second foal produced from the 10-year-old Strawberry Road mare Stephanie's Road, who finished second or third in three stakes at Emerald Downs in 1997.Bred in Kentucky by Brian Kahn and Taylor Made Farm, the colt was bought back for $145,000 by Taylor Made Sales Agency, agent, at the 2001 Keeneland September yearling sale. He was one of three horses that shared the fastest clocking of :21 1/5 for a quarter mile in the OBS spring sale's under tack show.Nelson Bunker Hunt was the sale's leading buyer, purchasing 29 horses for $682,700.