The Euro Spi has a sail area of 16 square metres (like the main). it gives the cat a lift in the bow (as EVERY SPI). <br>We used to sail that for 6 years. Together with Detlef Mohr (Euro Champ) we trained a lot and found out: <br>A. Spi helps in winds less than 12 knots <br>B. Boom is 75cm to short and cuts therefore the airflow off the main <br>C. newer Spi available at Hobie Cat Euro <br> <br>Hang loose <br> <br>Fritz<br><br>