For those of you who hit the ball too low, sometimes it happens because when you take your address position you put too much weight on your front foot. You end up setting your weight on the left side, moving the handle too far in front of the ball, de-lofting the clubhead and making the shot go too low. Obviously what you would like to do is to set up so that your weight is more evenly distributed, bringing the handle back to even with the ball to try to get it up in the air. A good drill to get you feeling that is the uphill lie drill. All you want to do is find a gentle upslope to practice on and you try to set up so that your knees, hips and shoulders are all parallel to the slope you are on. You can tell if you are leaning into the slope and if you want to shift back and set up parallel to the slope. When you do you will feel your weight move more to your right foot. You can actually hit some shots off the uphill slope and you will get the impression that you are much more behind the ball. That is the best way I know to help you get the ball higher.