Check out 4:40 in the Dancing With Your Sister vid of the daggerboard controls ;-)
Right height control is your friend!
I'll have to check that out. Ride height is important from an aero and foil efficiency perspective. If your ride height is so high that the tip of the foil is coming out of the water, it's AOA (angle of attack) is high and inefficient. I bet we'll see ETNZ foil lower when (if) they get behind.
