So the new version of the lightwind kite by Switch is now in stock in sizes 7, 8, 10 and 16 (9,12,14,18 to come).
http://switchkites.com/helium3.html
I mainly ride in the waves, and in light breeze in the summer (usually 15 knots max), and I also ride a foilboard when the waves are gone.
I ride the Element5 (and now E6), which works great for both surfing and foiling, but having a kite specifically developed for light wind riding in the waves should be a game changer. Can't wait to put my hands on it!