Martin really strips it to the fundamentals here. Three simple keys:
- Tee the ball low. (Yes, use a tee!)
- Play the ball back in your stance a bit. (That's different from most tee shots.)
- Keep your lead wrist bowed at impact. (Watch the video. You still want to 'release' your wrists after impact, because that's the only way you'll get any distance with this shot. But the idea is to delay your release long enough for the shot to launch at a low angle.)
If you find yourself hitting into the wind and/or absolutely have to get your tee shot in the fairway, this is a great shot. Just remember that the ball doesn't fly as far; it gets most of its distance from roll. Make sure there aren't any hazards -- or gorse! -- in your way.