In truth, there’s no such thing as the ONE right way to grip or the ONE right way to bring the club back. What matters is what’s happening at the exact moment the club makes contact with the ball.
That’s why the SKLZ Smash Bag is an instructor favorite that maximizes simplicity: throw it on the ground, address it as you would a ball, and hit it — as you would a ball. It’s great for speed training and learning to compress the ball through forward shaft lean.
For what it’s worth, the smash bag is also a great way to release some energy…or pent up aggression.