By Wally Pyrah MATTHEW Poon, the 31-year-old claiming rider, fondly known as ‘The Poon Train’ by regular racegoers in the city, is having the time of his life in Hong Kong at present. With a winning double on his birthday at Sha Tin last Sunday, which included landing the Class 2 Panasonic Cup, he finds himself joint-fourth in the jockeys’ championship table with 13 winners and a good chance of representing Hong Kong in the International Jockeys’ Championship at Happy Valley early next month. Poon has a number of potential winning chances at the Valley, including Chateau Le Peche in the Ngau C…