These were the Key Points:
1: tight and active heel recovery with ankle dorsiflexed following push off. kneeup/toes up/heels up.
2: simultaneous thigh lift through full of motion. step over opp knee.
3: foot plants under the hip
4: active plant involving lower leg and ankle joint, and downward, backward claw with thigh and lower leg.
5: acceleration of the thigh on downward movement with ankle dorsiflexed. negative foot speed.