Series leader New Zealand thumped Taiwan 50-5 to kick start its Hong Kong Sevens campaign on Friday, while defending champion Samoa opened with a 35-7 win over Sri Lanka. Tomasi Cama and Steven Yates each crossed twice as New Zealand, aiming for its fifth title in five IRB World Sevens series tournaments, scored eight tries and recorded its 37th consecutive win this season. Wu Wei-luan's late try sparked celebrations for Taiwan, which is coached by Fiji great Waisale Serevi. Alafoti Fa'osiliva scored three of the five tries for the Samoans - surprise winners over Fiji in last year's Hong Kong final – in the Pool B win over Sri Lanka. Fiji conceded the opening points but rallied for a 42-7 win over South Korea. In Pool F, with David Campese working as assistant coach, Australia opened with a 24-12 win over the Hong Kong side. South Africa, World Cup holder in the 15-a-side game, had a 40-7 win over Japan in Pool C and Kenya thrashed China 47-0 in Pool E. England, which fell short in its bid for five straight Hong Kong titles last year, faced early Canadian pressure to win 24-12 in their Pool B clash.Stormers cruise South Africa's Stormers scored one of the fastest tries in Super 14 as they romped to a 32-16 win over Australia's Western Force at Perth on Friday. Wing Tonderai Chavhanga caught the Force napping to touchdown after just 48 seconds as the Stormers ended their month-long visit to Australia and New Zealand with three wins from four matches. Chavhanga scored a second try before the break to give the visitors a healthy 20-11 lead at halftime before captain Jean de Villiers and prop JD Moller crossed in the second term to secure a bonus point before the South Africans head home to Cape Town. Australia's New South Wales Waratahs, meanwhile, survived a late fightback from South Africa's Cheetahs to win their Super 14 clash 23-19 at the Sydney Football Stadium. Also Friday Canterbury overcame the loss of injured flyhalf Daniel Carter and the sinbinning of number eight Mose Tuiali'i to beat Wellington 20-13 in the Super 14 clash in Wellington. __