One of Dubois' earliest designs of renown was Aquel II, a 123-foot cruising sloop launched in 1986. Dubois called her "pretty space-age at the time." Within a few years, she caught the eye of noted Kiwi yachtsman Neville Crighton who commissioned Dubois to design the 106-foot Alloy Esprit.
When asked which of his yacht designs are his favorites, he mentioned the 110-foot Imagine, a 1993 build that was his third project with Alloy. "I did fall in love with Imagine a bit," he told Yachting in 2010.