LOUISVILLE, Ky. -- There isn't a more expensive sales graduate in the 20-horse field for the GI Kentucky Derby than Whisper Hill Farm and Gainesway Stable's 'TDN Rising Star' Tapit Trice (Tapit). The $1.3-million Keeneland September yearling graduate, bred in Kentucky by Antony Beck's operation, has gone on to validate that seven-figure pricetag in spades, bringing a four-race winning streak into the first Saturday in May off the heels of eye-catching, come-from-behind victories for Todd Pletcher in the GIII Lambholm South Tampa Bay Derby and GI Toyota Blue Grass S....