Relaxing your head and neck so they find their place in the alignment of the spine and the neck region is important at this stage. Make sure that your arm will fit under your chin as you make the swing to keep the alignment straight. One of the common mistakes about the technique is that some golfer tuck the head into the shoulders to keep the rest of the neck moving. This does not work because during the motion of the swing the arm is forced to go around the chin, bending and affecting the line of flight of your ball.
To maximize the effect of this exercise, remember to put into practice at 25 times in a row. After the 25th swing rest for a while and practice another 25 swing in a row. Maintain your body position and your head and neck alignment. Make minor adjustments to make the position more comfortable. Do the exercise at least an hour to two hours in a day to make sure that your body is remembering the position it is most comfortable with. You might say that this is like conditioning your body to align itself automatically for every swing.
Another great way of improving your swing is to relax your body as you swing. Tense muscle movement leads to limited dexterity and flexibility. Relaxing your body as you swing helps a great deal in improving your game. When your body is tense, the burst of kinetic energy is cut short because it is hindered from moving in a free flowing way. And of course balance.
Balance is important in improving your golf swing because it directly affects the force that ball is hit with. Proper balance during the golf swing helps a great deal in releasing the maximum hit force.