Swing Harder? Not So Fast...
Comfort level over the golf ball will translate to more quality shots, provided you're in rhythm. You aren't rewarded in any fashion by having a hard or fast swing at the top, so why swing fast before you need to? The entire goal of your swing is to maximize you speed at the exact moment when the club contacts the ball. If you deviate from this, you are more likely to hit a bad shot, rather than hit it far.