Using a venturi to get maximum sail performance is genius!

And the 35s5 does it!

GENIUS!

The cabin profile on the deck is smooth and well designed. In fact, it's a
very efficient semi planar nozzle design. The airflow over the deck is
designed to have maximum velocity and minimum pressure right at the leading
edge of the mainsail. This drastically improves sail efficiency.

DRASTICALLY!

This means enhanced light air performance!

Don't believe me?

Well take a look at a car. Where is the most drag? It's on the underside. A
well designed car has a smoooth underbody. A well designed sailboat uses the
deck shape to increase airflow over the sail, especially close to the water
surface where the boundary layer is.

This means less twist needed in the sail!

This means more drive in the sail!

This means the 35s5 is a very efficient design!