A full release asks for the entire rear side to drive and move with the release. Using the ground correctly in the downswing can help lead you to this added benefit of power and control.
Arm speed is necessary IF you want to keep the arms and hands and club in front of the body. If you pull your body too soon and your arms get stuck behind your body then this video is for you.
Going down to hit the ball creates the proper spin, trajectory and strike. Many golfers tend to move up and away from the ball and early extend the body and alter their spine angle. Watch this video to learn the right way.
This video is a follow up the a previous swing path and clubface orientation discussion. Now I explain how the drills in my instruction helps take care of these two elements.
The brain needs swing and visuals for feedback to embark upon improvement. This hitting drill is as simple as it gets to allow the student to see and feel the correct path into the ball and beyond.