DEL MAR, Calif. - You can make good money as a foot and ankle surgeon, but it can't provide the thrills of racing. That's why Bart Edwards followed his muse. He left his medical practice 3 1/2 years ago to pursue a life-long love of the track. On Wednesday, Edwards will try to win the $125,000 Graduation Stakes at Del Mar with Twin Fin, a colt he both owns and trains.