 Ramba uchiverenga ndima iyi - Kubva muna 1951 kusvika muna 1953, Choo aidzidzisa chikwata chenyika yeIndonesia achibatsirwa nevamwe. Chikwata chakatenderera Hong Kong muna 1953, chichiwana kukunda pamusoro pezvipfeko zvehunyanzvi zveHong Kong. Choo akagadzwa murairidzi wenyika yeMalaya muna 1958. Akatungamira timu kuhwina mikombe mitatu yeMerdeka Tournament kubva muna 1958 kusvika muna 1960. NaChoo, Malaya akahwinawo mumakwikwi enhabvu e1961 Southeast Asian Peninsular Games uye bronze pa1962 Asian Games. Choo akabva kuMalaysia ndokudzokera kuSingapore muna 1964. Akagadzwa semurairidzi wenyika yeSingapore pamusoro pematanho mana kubva muna 1964 kusvika muna 1977. Akakunda mukombe weMalaysia muna 1977, makore gumi nemaviri pashure pokukunda kwokupedzisira kweSingapore. Kubudirira kwake kwakamupa mubairo wa1977 weMurairidzi wegore. Gore rakatevera, akakudzwa nemenduru yePingat Bakti Masyarakat nekuda kwemabasa ake kuSingapore nhabvu. 