Lane's End Racing and Hronis Racing's Flagstaff (Speightstown), fresh off a dramatic first Grade I victory in the May 1 Churchill Downs S., will be aiming for a third straight win when he goes postward in the GII True North S. at Belmont Park Friday. The 7-year-old gelding won the GIII Commonwealth S. at Keeneland Apr. 3 before outbattling Lexitonian (Speightstown) and Whitmore (Pleasantly Perfect) in a blanket finish in the Churchill Downs. He is cutting back from seven furlongs to 6 1/2 furlongs for the True North. "It was...