Down hills. Arms backwards again. Lean. Point toes down hill ro prevent heel strike. Up hills. Arms forward not back. Keep heel down, sideways if steep. Lean. Check in on form often. Peel up feet. Swing elbows backwards. Peel foot off. Belly Breath. Relax joints. Swing arms back from hips. Cadence 85 minimun. Use metronome.
Swing Pelvis. Lean forward 1-4 inches.