Good idea, but I don't know how well it will work with that little section of lateen sail sticking out in front. Since the mast is so short and so far forward, I don't know that you'll get much benefit from such a small sail.
What might be more effective would be to change the rig and put a large mast on it with a sock sail, like a Bic, Laser, or Force five. Lateens just don't go that fast.
Sabre 38 "Victoria"