The foundation of your power plant is your stance. Managing power through your harness efficiently is a combination of technique and variable body movements within these guidelines.
Think - Hips forward, arms straight (refer to coaching cues on trimming coming soon), shoulders back, power through the back leg, front leg straight and look in your direction of travel, "shoulders over feet".
It is the access to managing more power, riding faster with control, riding harder for longer, edging and popping higher, managing your board with control. See for yourself.