Actually on the safe side, ( unless your area is in high demand), should start testing market half year before TOP. Some agents request at least 3 mths of exclusivity before they are willing to post online on property portals. Time flies, before you know it, 6 mths gone liao..I prefer to sell after I'm almost ready to move (so that I don't have to look for place to stay during the window period). If it's really around 1st quarter TOP, then I would put it for sale beginning next year. Anyway, it's better than 2nd quarter, as it may drag till lunar 7th month
