Robert and Lawana Low are in the midst of a busy month as they campaign the undefeated Magnum Moon from a win in the Arkansas Derby to his biggest test yet in the Kentucky Derby. In the middle, they made some noise at the Ocala Breeders’ Sales Co. spring sale of 2-year-olds in training, landing a Tapit colt with his own Derby ties for $750,000 on Wednesday. The gray or roan colt is out of the Grade 3-placed stakes-winning Touch Gold mare Flaming Heart, whose six foals to race are all winners, including Grade 2 winner Commissioner and Grade 3 winner Laugh Track. She is also the dam of Mythical Bride, who produced Grade 2 winner and Kentucky Derby contender Vino Rosso. Bred in Kentucky by WinStar Farm and Winchell Thoroughbreds, the colt is from the extended family of Grade 3-placed Dash for Money and stakes winners Hot Lear, Intern, Love Medicine, So Lonesome, and No Spin. WinStar Farm bought Flaming Heart, in foal to Street Cry, for $1.5 million at the 2007 Keeneland November breeding stock sale. The colt breezed an eighth of a mile in 10 2/5 seconds during the presale under-tack show over the Ocala Training Center’s all-weather Safetrack surface. Niall Brennan Stables consigned the colt as agent. Robert and Lawana Low are based near Springfield, Mo., with an ownership portfolio that includes the trucking company Prime Inc. and the Palace Casino in Biloxi, Miss. They reside on a 300-acre horse and cow farm named Primatara that features one of America’s largest houses, measuring in at roughly 70,000 square feet – larger than the White House, at about 55,000 square feet. Successful runners campaigned by the Lows include Steppenwolfer, who ran third in the 2006 Kentucky Derby, and Grade 2 winners Real Cozzy and Green Fee.