Happy Valley experts Douglas Whyte and Jolly Gains combine their talents again tonight in the final event and that should be enough to see the pair sail home in the Big Wave Bay Handicap. Nobody rides the tricky city circuit better than Whyte and he has a great record - three wins and two seconds - on the Manfred Man Ka-leung-trained sprinter. Jolly Gains has been a very tidy performer all round in his career, finishing first or second at nine of his 14 efforts. There was nothing wrong with his latest start, even though it was one of those rare unplaced runs. After a 1,000-metre Valley win in September, the Danehill gelding suffered a severe bout of colic in October requiring surgery and he disappeared off the scene for quite a while. Despite a thorough preparation before running at Sha Tin's all-weather course on April 16, Jolly Gains had apprentice Alex Lai Hoi-wing in the saddle to reduce his handicap weight to 113 pounds. Jolly Gains has a great first-up record but on this occasion probably just needed the hit-out and still let nobody down with an eye-catcher behind Sun Power. Since that effort, Douglas Whyte has played a closer role in the horse's trackwork and Jolly Gains looks more like his old self. From a good gate of three, he looks the one to beat. The danger might be another horse returning after a break, Shogun from the John Size stable. He was in great form early in the season, including a win over Tiger Ridge at this course and distance, but was a touch disappointing in two runs at the end of January and Size gave him a break. Shogun has the coveted one gate and performed well enough in a recent barrier trial to warrant respect. Also a danger with the pace likely to be solid in the race is Move It with in-form Robbie Fradd up. Trainer Andy Leung Ting-wah has has a lean season, but Hong Kong maiden Move It has tried his heart out, flashing to the line a number of times and even looked unlucky to be beaten at Happy Valley early in the term. Despite his get-back style, Move It seems to produce his best at the Valley and there was nothing wrong with his dazzling finish when third to promising Flaming Lamborgini over the course on April 6. The winner has gone on to confirm the form, winning again impressively and runner-up Flying General has been placed second in his only run since. Tiger Ridge (gate nine), Every Time (gate 12) and Groom Raider also have prospects.