"Bit of a tougher day today,'' Aleh said. "We had a rather dreadful first race. We didn't quite get off the start line and, after that, there were very few passing lanes and any little mistake got compounded.
"The next race was a little better. We only really got the speed going halfway up the first leg, which was a little late, but at least we were still in the mix. So not the best day at all, but some lessons learned and we take a fourth place forward as our carry-forward first race. So the real regatta starts tomorrow.''
Snow-Hansen and Willcox returned another two excellent race results on day two despite the tricky, choppy conditions to retain third overall at the end of the qualifying phase.
They notched a third and a second, to see them progress behind Australia's Matt Belcher and Will Ryan and the French team of Pierre Leboucher and Nicolas Le Berre.
Francisco Lardies and Luke Stevenson are 57th at the start of finals racing and Richard Power and John Power 94th.