PATRICK Biancone and Gerald Mosse completed their magnificent seven last night when notching an effortless Happy Valley double. The formidable French pairing combined to take the feature Po Leung Kuk Cup with the American-bred Sun Crest and the fifth via wide-margin scorer Glory Of Pakistan. Last night's victories from Sun Crest and Glory Of Pakistan made it seven winning doubles in succession from Biancone and Mosse. It is a considerable riding feat but it is even harder to train seven winning doubles in arow, particularly in a racing jurisdiction such as Hongkong where virtually every race is a competitively framed handicap. On this sort of form, their first Hongkong titles beckon both Biancone and Mosse. The double lifted Mosse above Tony Cruz at the headof jockeys' standings. Mosse is now on 24 winners for the season and leads the Hongkong riders' championship for the first time in his career. For his part, Biancone has zoomed through the training ranks from a dismal position before the virus-enforced break to sit in second spot on 19 winners, just two behind the defending champion John Moore. Biancone was in justifiably ebullient mood after racing. ''Everyone knows the secret to the success Gerald and I are enjoying,'' he quipped. ''It is work, work and more work. ''This is the way for us, f He looked very good value for his five-pound claim when giving Golden Luck a copybook ride. ''That was just grand,'' he beamed as he returned to give the thumbs-up sign to Ng who has his horses in such cracking form.