Pete Reed and Steve Williams race together for Leander while Alex Partridge and Andy Triggs-Hodge will be in sculling boats for Leander and Molesey respectively.
The better choice for human propulsion, he says, was the paddle-like deep-catch stroke, which actually produced more lift than sculling, along with a hefty dose of drag.
The men's quad of Stephen Rowbotham, Matt Langridge, Matt Wells and Alan Campbell felt they had a realistic chance of becoming the first men's sculling boat since the seventies to win a medal at a World Championships.