Would the spi work like a kite? Kites lift into the air becasue the string prevents horizontal motion and the angle of the kite is such that the air is deflected downward forcing the kite up.

I have seen on larger boats (mono-hulls) people dangling off the bottom of the spi for fun. Is that spi can lift a person up, why would it not lift up on the end of the spi pole which would lift the bows up too. It would seem that a spi would direct the airflow to the leeward side of the main and jib as well as downward which would lift the bows due to Newton's 3rd law.

Am I understanding ths correctly or am I way off base?