Douglas Haw explains this back outside edge take off and tells you some interesting history where the jump originates from. The figure the back outside loop. Douglas describes the lean involved and when how to fire up. You will hear about your toes and your feet and how they need to be perpendicular to the ice.
In this 3 minute and 13 minute video lesson Douglas explains the mechanics of your foot and how you need to press forward. Douglas then shows the piecrust exercise to get started. Your arm position should feel natural and you work your ankle. This exercise really emphasis the us of your ankle.