> What is Axis Tilt?`
Tilt of the spine such that the top is further from the target than the bottom
> WHY or WHEN is it necessary?
It's necessary to get the right shoulder going downplane, rather than out above plane (over the top). I think its necessary at the startdown, but I've heard it said that it can occur later than this. It also allows a straight line delivery path of the hands.
> WHEN and HOW should one accomplish this tilt?
At startdown, through a hip slide parallel to the selected delivery line with a stationary head.
> About how many degrees should one tilt?
Depends on size of the pulley? More tilt for longer straight line delivery path.
> Are there different TILT AMOUNTS for different STROKES or PROCEDURES (HIT vs. SWING / CIRCLE vs. LINE DELIVERY)?
See above. I think no tilt means you have to have a circle delivery path.
> What is an example of a distorted concept and application of an AXIS TILT?
Dropping the head back instead of moving the hips forward.
> What is Axis Tilt?
As described in the above post.
> WHY or WHEN is it necessary?
> WHEN and HOW should one accomplish this tilt?
It's the result/effect of the upper body (shoulders) being held up by the club lag during lag loading (transition) and sustainning (starting down). In other words, you don't need to do it. It shows up as a result of " lag loading and sustainning.
> About how many degrees should one tilt?
> Are there different TILT AMOUNTS for different STROKES or PROCEDURES (HIT vs. SWING / CIRCLE vs. LINE DELIVERY)?
Depends on the effort of "lag loading and sustainning".
> What is an example of a distorted concept and application of an AXIS TILT?
The intent to do it.
__________________ Yani Tseng, Go! Go! Go! Yani Tseng Did It Again! YOU load and sustain the "LAG", during which the "LAW" releases it, ideally beyond impact.
"Sustain (Yang/陽) the lag (Yin/陰)" is "the unification of Ying and Yang" (陰陽合一).
The "LAW" creates the "effect", which is the "motion" or "feel", with the "cause", which is the "intent" or "command".
"Lag" is the secret of golf, passion is the secret of life.
Think as a golfer, execute like a robot.
Rotate, twist, spin, turn. Bend the shaft.
How do you distinguish in these pictures between an upper body sway off the ball and an hip slide/axis tilt under a stationary head?
IMO if you try to tilt your shoulders away (sway off the ball)it is impossible to obtain the lag you see in these pictures .You will be casting from the top.
Axis Tilt(increase in) is often associated with a shallowing of the plane on the downswing. We can see with Garcia, for example, that this is not always the case. He shallows the downswing as much or more than anybody, but has very little tilt in this picture.