Post by imperfectgolfer on Dec 28, 2012 1:15:30 GMT -5
See this Jeffy-forum thread - jeffygolf.com/showthread.php?541-What-do-these-three-videos-suggest
I love the work that KM is doing with his Phantom camera. I think that we are going to learn more from that camera than we ever learned from TM or other devices.
Here is my interpretation.
This is the straight ball flight. Because I was informed that the flight is straight, I could draw the red line accurately to represent the ball-target line (BT line).
There is a black mark on the top of the clubface that acts as a reference.
Image 1 - the black mark is ~1/4" inside the BT line.
Image 2 - the black mark is ~1/8" inside the BT line.
Image 3 - the black mark is on the BT line, and I guess that's about 1" before ball contact.
Image 4 - the black mark is still on the BT line at the moment of first ball contact.
Image 5 - the black mark is still on the BT line at the moment of ball-face separation.
Image 6 - the black mark is ~1/8" inside the BT line.
Image 7 - the black mark is ~1/2" inside the BT line.
I think that the clubface is facing the target throughout the entire impact interval. I think that ball contact is slightly off-center, and towards the toe.
My interpretation - the clubhead path is in-to-square-to-in, but the path is directed straight towards the target in images 3, 4 and 5. The ball goes straight because the face is also directed towards the target throughout the entire impact interval. The slight off-center strike doesn't affect the ball flight.
Next - draw shot.
Knowing that this was a draw, I drew the ball-target line slightly to the left. This is a guesstimation.
Image 1 shows a black mark on the back of the clubhead that is on the red line.
Image 2 shows that black mark is slightly to the right of the BT line.
Image 3 shows that the black mark is slightly to the right of the BT line.
The movement of that black mark suggests a slightly in-to-out CH path through impact. The face appears closed to the path and closed to the BT line. The ball contact is off-center towards the heel.
My interpretation - the in-to-out CH path and face orientation that is closed to the path produces a draw. The off-center heel contact has no effect on the ball flight (which is not predicted by the gear effect).
Next - fade shot
I again had to guess where to place the BT line because this was a non-straight shot.
Image 1 shows that the black mark on the top of the face is ~1/2" to the left of the BT line.
There is very little movement of that black mark in the next two images - which suggests a CH path that is directed at the target, or minimally left of the target, during the impact interval.
The face appears open to the CH path and BT line.
This is an off-center toe strike.
My interpretation - the fade shot is due to the face being open relative to the CH path. The off-center toe strike has no effect on ball flight (which is not predicted by the gear effect).
Jeff.
I love the work that KM is doing with his Phantom camera. I think that we are going to learn more from that camera than we ever learned from TM or other devices.
Here is my interpretation.
This is the straight ball flight. Because I was informed that the flight is straight, I could draw the red line accurately to represent the ball-target line (BT line).
There is a black mark on the top of the clubface that acts as a reference.
Image 1 - the black mark is ~1/4" inside the BT line.
Image 2 - the black mark is ~1/8" inside the BT line.
Image 3 - the black mark is on the BT line, and I guess that's about 1" before ball contact.
Image 4 - the black mark is still on the BT line at the moment of first ball contact.
Image 5 - the black mark is still on the BT line at the moment of ball-face separation.
Image 6 - the black mark is ~1/8" inside the BT line.
Image 7 - the black mark is ~1/2" inside the BT line.
I think that the clubface is facing the target throughout the entire impact interval. I think that ball contact is slightly off-center, and towards the toe.
My interpretation - the clubhead path is in-to-square-to-in, but the path is directed straight towards the target in images 3, 4 and 5. The ball goes straight because the face is also directed towards the target throughout the entire impact interval. The slight off-center strike doesn't affect the ball flight.
Next - draw shot.
Knowing that this was a draw, I drew the ball-target line slightly to the left. This is a guesstimation.
Image 1 shows a black mark on the back of the clubhead that is on the red line.
Image 2 shows that black mark is slightly to the right of the BT line.
Image 3 shows that the black mark is slightly to the right of the BT line.
The movement of that black mark suggests a slightly in-to-out CH path through impact. The face appears closed to the path and closed to the BT line. The ball contact is off-center towards the heel.
My interpretation - the in-to-out CH path and face orientation that is closed to the path produces a draw. The off-center heel contact has no effect on the ball flight (which is not predicted by the gear effect).
Next - fade shot
I again had to guess where to place the BT line because this was a non-straight shot.
Image 1 shows that the black mark on the top of the face is ~1/2" to the left of the BT line.
There is very little movement of that black mark in the next two images - which suggests a CH path that is directed at the target, or minimally left of the target, during the impact interval.
The face appears open to the CH path and BT line.
This is an off-center toe strike.
My interpretation - the fade shot is due to the face being open relative to the CH path. The off-center toe strike has no effect on ball flight (which is not predicted by the gear effect).
Jeff.