Being the most blessed guy in the Universe, I'm gonna share the coach's advice on my Heel Strike.
From the coach: turn the sound off - it's misleading and "Notice the video on the right the foot is relying on the footwear to dissipate force. The video on the left the foot is plantarflexing to reach for the ground. One foot is anticipating the other is reacting to the ground."
And Jill's favorite (and the drills I'll be doing on that plush grass near work):