Aidan O'Brien trainee Whistlejacket (Ire) (No Nay Never--Adventure Seeker {Fr}, by Bering {GB}) debuted with a runner-up finish in an Apr. 21 six-furlong maiden at the Curragh and made no mistake dropped down in trip for Monday's Listed GAIN First Flier S. back at the Co. Kildare venue. Sharply into stride to race on the front end from flagfall in this black-type bow, the 500,000gns Tattersalls Book 1 graduate was shaken up soon after passing the quarter-mile pole and surged clear under continued urging inside the final furlong to easily...