Turn Your Back to the Target on the Backswing
Lots of players try to swing their arms as far as they can on the backswing for more distance.
But you won't hit it very far like that.
To hit it far, you need to turn your shoulders more. My father was a very good player. He told me to turn my back to the target on the backswing.
I still use this swing thought today.
It's a great way to turn fully for more distance. To turn your shoulders, you want to flare out your right toe at address.
This will make your hips to turn more. When your hips turn more, your shoulders will turn further back as well.
When you need extra distance, think "Turn" rather then swinging your arms further back.
Close Your Stance
Another way to turn more is to close your stance a little at address.
Pull your right foot back about 5 to 10 inches at address. By closing your feet line, you will be able to turn further back.
Swing along your feet line to hit the ball from inside. At address, toe-in your club a little to hit a slight draw.