So I had my swing videotaped and it turns out that I'm picking up my right foot before impact on the downswing, most severely with my driver in hand. I found this little piece on this problem on the net. It sounds correct to me, but if not, hopefully you all can correct it:
The right foot on the golf swing is something that can really tell a story as to what may be wrong with your golf swing. If you are a right-handed golfer, the right foot should stay on the ground until impact, then and only then will it come up and on to the ball of your foot. This is a flaw Tiger Woods has fought for a long time. With his explosive hip rotation, you comes off his right foot early on almost every swing. I want to discuss the physical requirement to be able to keep your right foot down in the golf swing. If you have a restriction in your right hip, groin and inner thigh area, you will no way be able to keep it down, you will bail out on this due to the restriction in the critical area that allows you to keep your right foot down. Also, if you're a "slider" of the golf swing, you will come off the right foot quickly, which is a telltale you are shifting your weight too fast laterally without rotating properly with your hips. The right foot is actually a reaction to a good swing. If you stay down, the foot will SLOWLY rotate without coming up too quickly. The other option is the foot comes up and out too quickly and you will most likely hit a slice or block.
Does anyone have any good drills, stretches or work-outs that help you keep your right foot down through impact? I feel like this bad habit is one of my main power killers.