Push the beach ball under water to start the swing
The host teaches starting the swing with the feel of pushing a beach ball under water — imagining you are standing in a pool and pushing the ball down. He says the hands drop about two inches to start, and from their own data the grip starts in one spot, drops about two inches, then stretches out to about four to five inches outside the trail hip, always moving down and out rather than up and lifty.
Channel: stayhandsy
Watch official source at 16:15Why this context matters
The two-inch drop figure comes from the coaches' own hand-tracking data.