HIGH-FLYING Seasonal sounded a warning they are the team to beat for the Division A1 crown this season with a comprehensive 108-91 victory over title aspirants Frankwell at the MacPherson Stadium, Mongkok, last night. Seasonal, runners-up the past three years, showed they have got the right formula to reassert their supremacy in Hongkong basketball as they extended their winning streak to four games. Team manager Ng See-yuen is quietly confident his team will improve further when their third foreign player, American Chad Tucker, arrives next month to join David Willard and impressive new signing Mark Meredith. ''I'm very pleased with our outfit this season as we've been winning games with only two expatriates in the line-up, so we can only look forward to even better things after Chad arrives,'' said Ng. Ambitious Frankwell were a depleted side without Steve Mielder, a locally-based American businessman who was on a business trip to China. Seasonal went on a 14-point scoring spree in the opening two minutes to establish a handy lead but their onslaughts were checked with Frankwell moving Perry Young and David Robinson back into defence. Frankwell slowly closed the gap and eventually levelled the tally 17-17, only to see Seasonal pull away again with sharp outside shooting by Ng Chu-yip, Meredith and Tam Kwok-hung. Things really looked bleak for Frankwell when Macau international Lei Mang-fung had to retire with a recurring hamstring injury mid-way through the first half and Seasonal went on to take a commanding 62-43 lead at the interval. Seasonal never looked back and with three minutes remaining, they withdrew Americans Willard and Meredith while leading 103-80. An all-Chinese team, however, were still good enough to see them hang on for a 17-point victory. In the night's other game defending champions Seapower were hardly stretched as they demolished amateurs Police 110-80, having led 69-35 at half-time.