“I’ve been working with a variation of chines I call “Split Vee” - Fucken hard to explain, maybe similar to a Tri - plane hull, but the middle panel is single to double concave and the vee line is curved along the rail about 3 - 4 inches in, rather than a straight line. I like to believe it makes it easier to break the line the board is following and go into a turn at high speed. The chine line is like vee under the front foot but on the side of the board that is in the water when board’s on a rail! Make sense?” Very interesting- I’ve drawn this out many times over the years myself without having one shaped. It seams like it might allow banking at retained high speeds. Anyone else try this out?