Stay connected to control the clubface
PorzakGolf's central point is that connection between the arms and body is what controls the clubface. When you get a little loose or disconnected at the top, you have to make it up on the way down - and that tosses the club through, so you lose the clubface and it turns over violently through impact. Staying connected removes the need to flip and catch up.
Channel: PorzakGolf
Watch official source at 9:34