This years HK$20 million Longines Hong Kong Vase (2,400m) is a riddle, wrapped in a mystery, given the tight field of eight runners and the fact that no one seems to quite know if there will be pace, or who it might come from.So eyes have been peeled for clues all week at trackwork in an attempt to eliminate as much of the guesswork that surrounds the visitors as possible.And while there wasnt much action on Friday, there
