While last Saturday's domination of the card by the South African riders was testimony to the level of their riding, it also highlighted the concentration of their ranks among Hong Kong's expatriate jockeys. Full credit to the South Africans, who seize the chance at the big prize money - they work hard, ride brilliantly and they truly earn the success they achieve. In just the past half dozen completed seasons, South African jockeys have won 39 per cent of all races run and held up 17 of the 24 top four championship finishing positions available. And this year more South African riders - seven - have started the season than ever before, representing half the expatriates, and the numbers alone suggest they will have a boom year. A great compliment to the men involved but a minor concern to the Jockey Club, which prefers to keep some diversity in the styles of jockeys and trainers, a diversity usually arising from their background. There is a hope within the club that developing local riders may eventually hold the key but, with due respect to the promising boys currently riding, that day is some way away. The ranks of the top French jockeys thinned quickly last season for various reasons and it would seem the attractions of Hong Kong racing have waned for many Australians. Even the few who might be considered possibles, given that most good riders from there have been and gone in the past 10 years, many leaving in a way that will ensure they won't be invited again, or they are unlikely to be asked in the first place. Long gone are the days when the Australian jockeys talked about the 'golden rickshaw' and swimming to Hong Kong to ride here. Leading Australians live a very comfortable existence at home without the kind of firebrand opposition they will meet from Douglas Whyte And Co. The South African dominance is proving discouraging to many outstanding riders from European nations too. As more than one frustrated foreign jockey has been heard to say in recent years: 'The money's great in Hong Kong - but only if you're getting some of it.'