One of the most common problems people have when they hit the ball off the toe is that when they are coming in to impact the back of their left hand breaks down and they end up scooping the ball like this, which shortens the arc into the ball. This makes you catch the ball on the toe of the club. What you are trying to get is that you are trying to arrive at impact with the arms and wrists extended. The left wrists should be flat and the right writs should be bent, rather than have the left wrist bent and the right wrist flat. A good drill to help you get the feeling of getting that extension through impact is the punch drill. Obviously the opposite of having your left wrist bent forward is having your left wrist straight. So what we are going to do is I am going to ask you to make a half a backswing and then try to hit a punch shot from this normal ball position, trying to feel that extension through impact. That is how you get a full radius at impact rather than a broken radius.