Harry Derham's Cristal D'Estruval made a striking start to his chasing career at Carlisle on Monday, sweeping 12 lengths clear of the 147-rated Be Aware in the two-mile Weatherbys nhstallions.co.uk Graduation Chase. Ridden by Paul O'Brien and sent off the 2-5 favourite, the five-year-old was returning from 330 days on the sidelines but showed no sign of rust. Dan Skelton's Be Aware, the 2-1 second favourite, trailed, with outsider All The Glory a distant third in the three-ru