Originally Posted by iacas
I started writing the thread, then realized I couldn't really finish it without any good examples.
Basically, consider how we measure "A6." We want the clubhead to be inside the hands (or online with the hands, or whatever). Yet what determines this? Yes, where the clubhead is, but also… where the hands are.
Let's take a look at these pictures:
In this picture, I've drawn a line down Grant and Tiger's lead arm. It connects their hand to their shoulder. Simple as that. It's just the base measurement.
Given that both players are going to strike the ball, this will be our "baseline" idea.
In this next picture, pretend both players pivot more by this point in their swings. This would put their lead shoulders where I've drawn new lines, and we'll pretend their hands stay in the same place. The measurement of their lead arm would change, though their swing may be pretty similar (in terms of club path, etc.).
But what if they swung the way they normally do, but swung their hands away from their bodies more? If they still want to hit the golf ball, they'd have to keep the clubhead tracking the same path, and it might look like this (arm, shaft, clubface leading edge):
And if they swung their hands closer to their bodies, something a bit like this:
In other words, if you swing your arms very vertically, the clubhead will almost surely "tip out" or get outside the hands because you look more like the last pictures, and because you still want to make contact with the golf ball, you need to send something "out" to the golf ball. So the club tips out. Otherwise you'd miss to the inside of the ball every time.
Or if you swing your hands way out, the clubhead will often look like it's well inside your hands because it has to stay in there, otherwise you'd swing right over the outside or top of the golf ball.
The simple takeaway is this: if you're struggling with A6 and the clubhead wants to tip out, take a look at how steep the angle of your lead arm is. You may need to feel like you're swinging your hands farther out away from your body (or out over the top of the golf ball or something) in order to make the club shaft lay down because you'll still want to make contact with the golf ball. If the club still tips out with your hands farther out away from you, you'd miss the ball.
I'll have to make a video eventually (pester me to do it when I'm with Mike in San Diego), but that's the gist of it.