The headline of a news report for a recent tender for private housing development screamed "Serangoon site draws just 4 bids". Another said the top two bids were just 2.6 per cent apart. It was alluding to the fact that the margins between the top bids before the Aug 30 cooling measures were mainly in the double digits, peaking at 31 per cent for a condominium plot in Yishun in August. They are now in the...