Understanding Heel and Toe Klankers...

As the size of the clubhead has increased over the last two decades so has the role that gear effect plays on off-center strikes. As the volume of the head increases so does the importance of a quality strike. I think the following video will go a long way towards explaining how this works and what it can mean for your game...

Now keep in mind that gear effect can be a help or a hindrance - it can cause your ball to curve to the target or away from it. Here's an example of how an understanding of the importance of strike point, particularly with the driver, can help any golfer avoid trying to fix something that isn't broken.

A Neutral Swing with a Heel Strike

The Same Neutral Swing with a Toe Strike

Notice how the delivery numbers (attack angle & clubpath) from the above two shots are eerily similar, yet the resultant ball flight could not be more different. The difference in the outcome of the examples above is purely due to the location of the strike for each shot. While the two shots are very different I see no need for this player to address their swing. They simply need to develop their skill at striking the ball in a consistent location on the face.

• Toe sided strikes will lead to more draw or less fade.
• Heel sided strikes will lead to more fade or less draw.
• High strikes on the face elevate launch and decrease spin.
• Low strikes on the face lower launch and increase spin.
• Gear effect works in 3D - the head will twist away from the strike location.
• If the CoG is closer to the strike point, then there will be less curvature from gear effect on off-center hits. 
• If the CoG is further from the strike point, then there will be more curvature from gear effect on off-center hits. 
• Controlling the strike location is a skill - practice accordingly.

If you're looking to gain a better understanding of how you're striking the ball with your  "headcover" clubs, buy yourself a few cans of Dr. Scholl's Odor X. Spray the face of your driver the next time you're warming up or practicing to get some all important feedback.

Your next question might be - "How do I upgrade where I'm striking the ball?" Valid. I am of the opinion that controlling the strike point is a skill. A fun drill is to practicing striking the ball in a variety of unusual, yet intentional, locations on the clubface. Here are additional resources to help you understand and manage the strike point:

Collision! — Andrew Rice Golf

Strike Point Drill — Andrew Rice Golf

Optimal Strike Point for Longer Drives — Andrew Rice Golf

Spin Rate and the Driver — Andrew Rice Golf

Swing Pattern vs Strike Point — Andrew Rice Golf

TrackMan Exposes Golf Myths

It has been an enlightening experience using TrackMan in almost every lesson for a year now.  There are so many widespread 'philosophies' (see: fallacies) that we, as golfers, have heard so many times we simply accept them to be truth. TrackMan says - hold on a minute!

Here are a few examples that come to mind:

• You've got to "Release the Club through Impact"

The collision between club and ball lasts less than 1/2000th of a second and it simply is not possible to "release" or consciously alter the face angle during that very narrow time frame.  The face is what it is by the time impact happens.  For example - in 2012, by the time Bubba Watson teed it up in the Masters, his ball had not been on his clubface in competition for even one second! The only element that can alter the face during impact is an off center hit and that's far from conscious.

• "Draws Must be Hit with a Closed Clubface"

Or vice versa, fades are hit with an open face.  Draws are really good if they start to the right (for righties) - agreed?  TrackMan shows that the clubface is primarily responsible for the launch direction of the ball and thus for a good draw the face should be to the right of the target with the clubpath (which primarily causes curve) being further to the right. When that, along with a centered hit occur, voila - we have a lovely push draw!  This also dispels the myth that the ball launches in the direction of the swing/clubpath.  Clubface (primarily) = launch.

• "That Drive Had Tons of Sidespin..."

The vast majority of balls that are hit in the air have backspin.  If a golfball has backspin it cannot possibly also have sidespin.  Think about it - two types of spin on one ball at the same time?  So what makes it curve?  TrackMan shows that all shots that curve do so due to backspin on an axis (spin axis) that is tilted either left or right.  Curve is purely caused by backspin that is tilted to one side or another.

• "My Divots Point Left so I Must Be Over the Top"

Because divots ideally occur after the collision between face and ball, the clubpath has a window of opportunity to start arcing back inside the target line.  I have seen anything from push fades, to hooks, to push draws from leftward pointing divots.  Divots do not tell us as much as we think, because they do not (and should not) occur at the moment of impact.

• "That Ball Faded - I Must Have Cut Across It"

A very important factor in determining shot shape is not only the clubface relative to the clubpath, but also where the ball is struck on the face relative to the sweetspot.   For regular golfers off center hits occur on the majority of shots hit.  Balls hit off the toe of a club will always have a tendency to draw or fade/slice less and balls hit off the heel will always fade or draw/hook less.  Even one dimple on either side of the sweetspot will make a difference.  This means it is possible to swing for a draw and hit/strike for a fade.

• "My Instructor Showed Me My Club Path on Video"

Ehhh....no!   Trust me on this one - what you see on video is a  2D version of a 3D event and the only way you can accurately know what your real clubpath is to be aware of your attack angle, which with video this is not possible either.  On video you will see the direction you are swinging in relative to the target, but there is no way to know your clubpath (which is what creates a good portion of ball flight).

• "Hitting Down Always Leads to More Backspin"

Spin is created by many factors, but a steeply descending blow on its own will not alter spin.  When a golfer hits down aggressively they often also reduce the loft on the clubface, and a lesser lofted face will do nothing to increase backspin.

• "Draws Are Much Longer and Spin Less Than Fades"

This is a good one!  With everything else kept the same a ball that spins on a left leaning axis has no reason to go further than a ball with a right leaning spin axis.  Now, keep in mind it's very difficult to keep everything the same (thus draws tend to be longer), but in a controlled environment both shots go the same distance.   Just be aware that a properly struck fade will most often go just as far as its draw side counterpart.

And while it's not a myth, even though PGA Tour golfers average out with a downward attack angle on the driver, TrackMan has more than done it's share to prove how maximum efficiency and distance can be achieved by hitting up with the driver.

Feel free to share your thoughts or questions.....