[Mike O]

I decided to download your latest video to my computer, and I used my swing analyser program to study your swing in depth.

I found one flaw in your last swing that could predispose to pulling.



In your first two DTL swings, you have an excellent downswing pivot action (hips first, shoulders second) and you have a good posture at impact. Images 1/2 shows that your pelvis is open and your shoulders less open. However, in your last swing (see image 3) you can see that your pelvis stalled in the downswing, and it failed to complete its rotation even though your arms are now fully extended towards the target in the finish phase of the swing. That failure to rotate your lower body well started in the early downswing and it seemed that your upper torso was rotating much faster than your lower torso, which means that your kinetic sequencing was out-of-synch in that particular swing. That type of error would cause the equivalent of an "upper body dive" swing, which causes an out-to-in swingpath through the impact zone and a pull if the clubface is square to the clubhead swingpath. It is difficult to tell if your clubhead swingpath was out-to-in in that particular swing because it was not DTL.

Here is a photo showing the results of an "upper body dive" movement where the upper body turns much faster than the static lower body.


Jeff.

Following up on my post- (thanks for the slow motion video Jeff and the still frames!) - My guess on the "cause" of Nathan's issue is that he has worked on keeping a steady head - yet transferring that thought into a "no weight shift feel"- because it is easy when your weight shifts to the left side to feel as if you are moving the head. As a result of working on head still- the arms go around the hips so that the weight doesn't shift and you don't get a feeling of moving but more a feeling of staying centered. It's using a valid visual que (head still) and translating it into an invalid feel que. Easy to do! That's also why on the backswing the shaft is slightly laid off as the head still concept has unknowingly limited some rotation and proper loading of the club. (Please don't read this and think I believe that you should try to move your head- that's not what I'm saying)