If you are new to the one-plane golf swing and you are hooking the golf ball this tip if for you. In all probability if you have been coming from a slice swing your arms have had to slow down coming into impact and you have had to flip the clubhead around to make the ball go straight.
The Right Clubhead Position
Now with the one-plane swing, if you are going around, the club is now squaring on its own. It might even be closing too much. If it is closing too much all you have to do is keep your body and your arms moving through the golf ball.
Do not let them slow down. If the ball is hooking too much just move the arms through there aggressively all the way to the finish. That will take your hook away and hit it straight. It will work, give it a try.