JUST A FEW NOTES:

In the first part I demonstrate a simple breakdown of the movement. I imagine I am in a hallway, this helps me try and go in a straight line.
I half twist as if I am going to do an armada. Then, I push off the back foot as if I am going to do a lunge.
I push my hips forward and try to make sure that I keep my second leg (my left) behind my body. Otherwise the movement turns into a parafuso/armada com martelo type movement.

The second movement, I demonstrate trying to push the hips up as high as possible, using my arms and the swing of my first leg. This helps me understand how to produce height in the movement and helps me try and push the hips up and not across too much.

The third movement is the basic raiz. I use my arms to draw a line of projection.
I usually follow my arms path with my legs.
I still try and focus on the principles above, but try and get my body to go down as my legs go up.