Veteran and established Championship Tour (CT) surfing competitors have cause for concern after the Hurley Pro Sunset Beach CT event revealed a wave of new young talent. The event, which concluded on Friday (Saturday Australian time), saw wildcard and local North Shore hero Barron Mamiya take the trophy in the men’s division, and while the women’s final was taken out by the more experienced Brisa Hennessy from Costa Rica, a host young rookies made the quarter and semi-finals. Mamiya, who finished 11th in the Billabong Pro Pipeline after being eliminated by eventual winner Kelly Slater, went up a notch for the Sunset event, demonstrating he’s the whole package, with a great rail game to back up his world-class barrel riding. In his semi-final against Brazilian Caio Ibelli, Mamiya came from behind, capitalising on a small wave that the Brazilian should have taken with priority and only a minute to go, …