The faithful army of early shoppers on Hong Kong racing has identified a number of the usual suspects to cheer up their QEII day, as well as couple of minor surprises. And then there's the day's shock favourite - Booming City in the seventh. This son of the unraced Zabeel stallion Columbia has raced four times since his arrival with one promising run - a second to Rice Field in Class Two on December 11 - before finishing 12th and 13th at his two most recent outings. While the first failure was put down to an elevated mucus reading in his trachea, the second one had no apparent explanation. Although Douglas Whyte has been engaged for Booming City today, one cannot factor in major improvement on that account alone because champion jockey also rode the four-year-old last start, when he laboured home 81/2 lengths behind Hawkes Bay. Despite there being more than $300,000 in the win pool at 6pm last night, Booming City was a clear-cut $38 favourite. New Zealand horseman Paul O'Sullivan is responsible for the shortest-priced favourite of the day with Jade Dragonfly ($31) in the opening event. The son of Danasinga broke through for a solid win at the third time of asking on March 19, and the step up in distance to 1,800 metres scarcely looks a concern. Local bias has seen Derby hero Viva Pataca lead the market for the $14 million Audemars Piguet Queen Elizabeth II Cup as $34 favourite, while champion British filly Ouija Board is at the lucrative but unsustainable price of $76. The surprise of the QEII market is the identify of the $46 second favourite, Viva Pataca's stablemate Best Gift, to be handled by Eric Saint-Martin. The 'dream team' of champion trainer John Size and runaway jockeys' premiership leader Whyte is responsible for two early favourites - Kingston Marble ($44) in the second and All Chances ($33) in the third.