SDF System - The Helicopter SDF stands for Straight, Draw, Fade. It is a simple concept that has proven to be very effective. Just line up the red blades to the target line in all positions and follow the easy to understand steps and you will hit the ball straight...it's that simple! Watch the SDF Video Benefits Improve Your Score Learn the easy way to hit the ball straight. You don't have to change your swing, just learn how to work properly with your hands and you will get straight shots every time. The SDF blades will show the correct position of the hands in each of the 7 positions of your swing. The SDF can be used in or outdoors, and it doesn't matter if you are a beginner or an experienced golfer; right or left handed. To begin your training, read the book carefully and then make the motions in a relaxed and very slow manner. Try to feel the position of your body and your club. Through practice you will create muscle memory. You don't need to think; just look at the blades in each position and repeat the motion. Use it with all your clubs You can carry your SDF in your golf bag anywhere and use it on any of your clubs. For instance, place your SDF on your putter to train and increase your accuracy in putting. Fold the red blades and use it with your put to help you aim. This will improve your score significantly! You can also use it with your irons as well as the woods. Practice your short game or your drive, whatever you need most! Use it with other Training Aids If you already own other training aids, the SDF will help you take the most out of them. Place your SDF on your Medicus?????? club to watch and understand what is happening in every step of your swing. Your SDF is also compatible with many other golf training aids like: The Swing Glove?????? The Putting Arc?????? Inside approach?????? Momentus Wedge ?????? What's Included An easy to follow instruction book with a complete golf lesson included (Spanish, Japanese and German versions to come shortly) A training aid that can be used on any of your clubs (we recommend the driver) Testimonials Simplicity is often the key to success. I really love to give the SDF to my students and watch the immediate results. I have been using the SDF with my students now for eighteen months and I am so proud and satisfied with the results. The SDF allows me to replace thousands of words used in my lessons with simple demonstrations. The product teaches on its own. All professional golf player