+1 for the correct edging in takeoff. If you do not make the last kick to upwind just when you are taking off, you will rotate forwards. If you turn too much upwind, you will rotate backwards (this is how you can initiate backwards rotation in takeoff). If you could see your track on the water (like you can see it on snow), your track would end to a short kick to upwind and would look like a Nike logo.
Bonus is that when you nail the edging and takeoff, you will get more hight for your jump.