The bump is one of the secrets to creating power and distance with the Peak Performance Golf Swing. Yet, a lot of golfers I work with in private lessons and golf schools don't quite grasp the correct motion of the club while transitioning with the bump.
As you bump, the club should actually still be going up vertically. This creates a stretching effect that will generate power. I call it the Big Bang Theory. Check out the video and you'll see how it's possible to achieve a perfect bump.
Keep it vertical!