"He's a veteran coach at Olympic level so his advice has been welcome over the last couple of years."
Eight of New Zealand's 15-strong sailing team are aged 25 or younger. At 21, Snow-Hansen and Saunders form the youngest end of that bracket with 49er sailor Peter Burling, who's at his second Games. Willcox says the beauty of this regatta is that neither of his charges knows their capability.
"These guys don't know how high they can raise the bar. It's probably the most exciting campaign they'll ever compete in. It's learn, learn, learn and a case of identifying how much they can absorb."
Snow-Hansen is officially designated skipper with Saunders the crewman. The skipper says the conditions at Weymouth suit them.
"Coming from sailing off [Auckland's] North Shore we find this venue great. We couldn't wish for more similar breeze. The fact it's always changing gives us a chance to use all our skills on the [five] different courses. To get on the podium at the last Sail for Gold regatta here is a credit to what we've been doing."
Yet the key question will inevitably surface this Games campaign: Can they (or any other non-windsurfing crew) break New Zealand's 20-year keelboat medal drought?
Willcox is coy: "It's been a good venue for us and we're knocking on the door in four or five classes ... I'd be surprised if we didn't convert one non-windsurfing medal."