A Roar filly named Reverberation zipped an eighth of a mile in :10 1/5, posting the fastest time for the distance Saturday during the first session of the final under tack show for the Ocala Breeders' Sales Company's March select sale of 2-year-olds in training. Consigned by Sequel Bloodstock, agent, Reverberation was produced from the 7-year-old Storm Bird mare Audy's Bird. The filly's third dam, Mom's Command, was a champion. During the first under tack show, Reverberation worked the same distance in :10 3/5.Sequel Bloodstock's Becky Thomas bred Reverberation in partnership with Lewis and Brenda Lakin. In the name of Lakland, they consigned the filly to last year's Fasig-Tipton New York-bred preferred yearling sale at Saratoga. She was listed as being sold to S & P Ventures for $39,000.An American Chance filly and a Mr. Greeley colt shared the honors for the fastest quarter mile, covering the distance in :21 2/5. Consigned by Moonshadow Farm, agent, the filly was produced from the stakes-placed mare Sweet and Lowdown, a 9-year-old daughter of Stalwart. Mark Casse, agent, purchased the filly for $40,000 at last year's Keeneland September yearling sale. She worked an eighth in :11 during the first under tack show. The colt was produced from the stakes-placed mare Saratoga Ack, an 11-year-old daughter of Saratoga Six. The colt's consignor, Eisaman Equine (agent), purchased him as a yearling for $20,000 at Keeneland in September. In the first under tack show, the colt ranked among the fastest workers at an eighth of a mile with a clocking of :10 1/5.A Tactical Advantage colt was the fastest worker at three furlongs, turning in a clocking of :34 3/5. Consigned by Ricky Leppala, agent, he was produced from the 11-year-old unraced Star de Naskra mare Simple Assault. The colt previously has been offered at four different auctions. His last time through the ring, he was purchased by W.D. North, agent, for $28,000 at the 2002 Fasig-Tipton Kentucky October yearling sale. The colt worked a quarter in :22 2/5 during the first under tack show.The second session of the final under tack show is scheduled for Sunday in Florida, beginning at 9 a.m. (EST). The sale will be conducted Tuesday and Wednesday, starting at 11 a.m. (EST) each day.