If this season on the track is especially memorable for anything for trainer Michael Chang Chun-wai, it might be the double on the final day when he revealed his highest hope for next term. Chang's season in general has had more downs than ups, though his final tally of 15 victories will just nudge him past the 14 wins he managed last season, but the debut winner, Amigo (Zac Purton), had some real significance. The three-year-old Private Purchase (PP) had his first run in New Zealand in March, winning a maiden event eased down by seven lengths in the style of a future topliner, and made no mistake first-up again, despite what Chang admitted was a fairly rushed preparation. 'He got here and acclimatised very quickly. It was a short preparation, but he is a just a natural - a good horse,' he said. 'He is still a baby, but I'm expecting much more from him next season.' And he was given to expect plenty by the gelding's former trainer, Stephen March. 'It is difficult for the smaller trainer like me to buy a good PP, but I was able to find this one after his impressive win in New Zealand. Stephen Marsh told me this is a Group horse for sure,' Chang said. 'Originally, I thought about finding an owner for Amigo, but Marsh said I should not take that risk and should keep it for myself. So I made a trainer's syndicate for the horse - now he cannot be transferred out of my stable.' Purton, who landed a treble, said Amigo's easy win at Hawera had come in a leading role, but that circumstances yesterday decreed a complete turnaround in riding tactics. 'We knew he was a touch soft in condition and then he drew a wide barrier,' Purton said. 'And then the way the track was riding seemed to dictate that we had to go back rather than forward. 'Luckily, they really did sail along in front and it just set everything up for something to come from behind. Fortunately, that something was us. That was pretty solid and he looks a nice, progressive horse.'