Optimal Driver Numbers on TrackMan

With so many questions after my two most recent posts I thought it would be enlightening to show you what we see when using TrackMan.  This particular driver was hit by Rick Hartmann - my boss and the Head Professional at Atlantic Golf Club.  Rick played on the European Tour for ten years and is a fantastic driver of the ball.  This is a good drive, but not anything unusual for Rick (it was into a very slight headwind).  These particular numbers are very close to optimal and should be something we should all be working towards regardless of what our club speed might be.  Of course that is if you happen to like high, long draws...

If you want to be efficient with your driver here is an explanation of what I look for:

• The Attack Angle (0.9 degrees up) is positive - a good sign for maximum efficiency as an upward hit is better than a downward hit (if you want to hit it as far as possible).
• Notice how (because the Swing Plane is very close to 45 degrees) that the Attack Angle + Club Path = Swing Direction.  Not unusual really, this is a helpful indicator in understanding what factors effect  the club path.
• The Spin Loft is close to 11 degrees - a solid number that seems to work for most golfers.  Spin Loft = Dynamic Loft - Attack Angle. Think of spin loft as a measure of 'ball compression'.
• In order to hit good draws the face must be open relative to the target at impact and here you see how the Face Angle is open (2.7 degrees) with the Club Path being further to the right (3.5 degrees). Couple that with a centered hit and you've got lovely push draws.
• A centered hit is vital and that's why I like to keep Face to Path alongside Spin Axis.  If the hit is in the heel the face angle would be closed ( a negative number) and the spin axis would be tilted to the right (positive) and vice versa for a toe hit.  Here you see how with the face slightly closed to the path, you should get a baby draw, and that's exactly what we got - all from a centered hit.
• Club Speed and Ball Speed are fairly self explanatory, but if you divide the club speed into the ball speed you will get 1.48 which equals the Smash Factor.  Smash factor is merely a measure of how efficiently you translated club speed into ball speed and is not purely a measure of how well you struck the ball. The maximum smash factor for a driver 1.53. (I have seen 1.54 twice!)
• The Height of the shot, which is measured from flat and not necessarily the ground, is right where I'd like to see it for this particular club speed.  PGATour average swing speed is 112mph and they hit all their clubs 90 feet in the air. At around 108mph I think 88 feet high works very nicely.
• Launch Angle and Launch Direction are largely influenced by the club face and I like both here.  I look for draws to launch to the right of the target (positive) and the launch angle to be somewhere between 10 and 16 degrees depending on the players club speed.
• The Spin Rate for this shot is a touch high, but I would attribute that to a shaft that is softer than what the golfer should be using.  I'd like to see the spin rate at this club speed be somewhere between 2000 and 2200.
• Side Total indicates that this ball is straight down the center and finished less than 4 feet right of the intended target line - just another ho-hum 280 yard drive down the pipe.

Somewhat advanced I know, but after the response to my last few posts I know there are thousands of golfers out there who are looking for a better understanding of what really happens at impact and what they should be working towards for maximum efficiency.  If you can duplicate these numbers you won't need me for much...at least not for the driver.

Getting More Out of Your Driver

I know that in the past I have made it known that it is okay to hit down on the ball with the driver.  This was primarily due to the fact that the PGA Tour average for attack angle (hitting up or down) was 1.3 degrees down.  I have since come to learn that the vast majority of us could greatly benefit from an upward strike with the big stick.

Research has shown that the most efficient way to strike the driver is to impact the ball from the inside and with an upward/ascending direction (the clubhead must travelling away from the ground).  This encourages a higher trajectory, reduces spin and leads to more roll once the ball comes back to earth. Ever heard of high launch, low spin? How can you incorporate these two important keys into your tee shots?

Let's start at address:  In order to move your swing plane to facilitate an in-to-out path drop your back foot and shoulder inside the target line - basically set up with a slightly closed stance. 

Face On Set Up

 Tee the ball high and make sure it is not too far back in your stance.  You should have a sense that you are behind the ball and are preparing to "swing uphill" as you get set.

 In the swing you will need to feel that you are staying behind the ball with your upper body as you aggressively drive the hips and weight over onto the front foot.  This is where the "uphill" sense comes from - as the hips drive the head stays back you create the body motion that allows for the clubhead to move up into the hit. I like to refer to this as body curve.

Believe it or not when you hit 5 degrees from the inside, coupled with 5 degrees up on the ball the clubhead is travelling straight at the target at impact (assuming you aligned correctly of course)!  A fantastic recipe for long and efficient tee shots.

If you cannot seem to get the sense or feel for hitting up on the ball it could well be that your are working your body incorrectly through impact.  It is very common for golfers with tight hips or general flexibility problems to overuse the upper body and try to muscle the hit with their arms.  This will always result in a downward, spinny strike on the ball.  You may also need to consult with a golf specific fitness trainer to help you become more physically able to get your body into the correct position.

Remember - this can be overdone! We are only looking for the clubhead to be moving a few degrees from the inside and a few degrees up so take it easy and go slowly.  I have had startling results this summer just by getting golfers to execute these two simple keys with the driver.  One golfer actually gained over 50 yards! I'm sure we could all benefit from a few extra yards....not to mention 50!