Using your knees in the transition is critical for having a good impact position. Move them too much or too little and you'll never find the consistency you need to shoot lower scores.
The Peak Performance Golf Swing setup uses wide knees outward pressure, but I often see golfers in that same position at the impact position. Once you bump and start the transition, your back knee has to move as well. This will allow you to fire through the ball and up to the T-finish.
Check out the video above to see how the knees should move from start to finish.
Keep it vertical!