You wrote-: "The other other way at looking at this is that he is managing his low point for the shot at hand. The ball forward of low point, his head back in an effort to launch a sky high ball for extreme distance. An artificial uphill type shot."
I disagree. He is making no attempt to hit up on the ball. He simply knows that if he gets his hands opposite his left thigh by impact, that the club's forward kick will cause the clubface to be facing upwards - if the ball is teed a little further.
Jamie Sadlowski was trained by Jason Zuback. There is no hip sway in Jamie's swing. The only difference to Jason Zuback's swing is that Jason positions his head centrally while Jamie positions his head further back - because he knows that he is going to have a lot of secondary axis tilt at impact when he swing his clubhead at >150mph through the impact zone.
Here is a swing video of his swing.
He does not sway in the backswing. Note how he braces his left side to keep in balance. He also needs secondary axis tilt to keep in balance. He only weighs 165lbs and his frame is much smaller than Jason's heavy torso. Jason can perform a more centralised swing and still keep in balance because of his heavy frame, but Jamie's body frame is different and he chooses to have more secondary axis tilt to keep in balance.
Jeff.
p.s. You don't have to worry about "increased secondary axis tilt" hurting my back. I have such little hula hula flexibility that I cannot achieve 50% of Jamie's secondary axis tilt. I guess I don't need it with a clubhead speed of 95mph.
Jeff
Dont get me wrong I am very impressed by his swing given what it was built to do. I see a lot of good fundamentals for a monster. Never said he swayed, dont even have an opinion.
With the ball in front of low point which way is his club head going: Down , out and forward, or up, in and forward?
You wrote-: "With the ball in front of low point which way is his club head going: Down , out and forward, or up, in and forward? "
Is has to be going up and not down. However that is significantly due to the club's independent kick-point action where the peripheral end of the clubshaft is not traveling in perfect straight-line-unison with the central part of the clubshaft. If you look at the central part of his clubshaft you will note that it has forward shaft lean - due to the fact that he is actually trying to get his hands ahead of the ball by impact. If he didn't have that much forward central shaft lean at impact, then he would be hitting more up at the ball at the exact moment of impact and he would lose considerable distance to a high ball flight trajectory.
In other words, although his clubhead is going up at impact, his thrust action is down-and-out-and-forward, and not up-and-in.
12PB You wrote-: "To hit the ball far . . . you extend from the feet up . . . each segment . . . . probably the biggest segment (really bunch of little segments) is the spine . . . . people who hit it really really long EXTEND/stretch out their spine . ."
I agree that long drive competitors need to brace their spine and left leg for maximum stability and I think that goal is best achieved when the spine is straight (extended) and the left leg is straight (extended), and the spine is angled back slightly so that the skeletal axis from the head to the left foot is optimised for power and balance.
Your photos demonstrate that even Jason has considerable secondary axis tilt at impact.
Bigwill - don't apologise for giving me a hard time. Like every forum member, I have to defend the rationale of my opinions.
You wrote-: "I'm pretty sure he's trying to hit the ball on the upswing.".
He is trying to get the clubhead to hit the ball on the ball on the upswing, but he is not trying to hit up at the ball with his hands/central clubshaft. Note that his central clubshaft near the grip end of the club has forwards shaft lean, which means that his thrust action is still down-and-out-and-forward.
12PB You wrote-: "To hit the ball far . . . you extend from the feet up . . . each segment . . . . probably the biggest segment (really bunch of little segments) is the spine . . . . people who hit it really really long EXTEND/stretch out their spine . ."
I agree that long drive competitors need to brace their spine and left leg for maximum stability and I think that goal is best achieved when the spine is straight (extended) and the left leg is straight (extended), and the spine is angled back slightly so that the skeletal axis from the head to the left foot is optimised for power and balance.
Your photos demonstrate that even Jason has considerable secondary axis tilt at impact.
Jeff.
Jeff,
That is NOT at impact!
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If you cannot take the shoulder down the clubshaft plane, you must take along some other path and add compensations - now, instead of one motion to remember, you wind up with at least two!
12PB You wrote-: "To hit the ball far . . . you extend from the feet up . . . each segment . . . . probably the biggest segment (really bunch of little segments) is the spine . . . . people who hit it really really long EXTEND/stretch out their spine . ."
I agree that long drive competitors need to brace their spine and left leg for maximum stability and I think that goal is best achieved when the spine is straight (extended) and the left leg is straight (extended), and the spine is angled back slightly so that the skeletal axis from the head to the left foot is optimised for power and balance.
Your photos demonstrate that even Jason has considerable secondary axis tilt at impact.
Jeff.
Zuback will have THE MOST extension thru the ball . . . his spine ain't straight though . . . it's major reverse C'd . . . but not at the top.
That is a great picture for hitting really far. To my eye, his power package looks good TGM-wise, but his club is moving up because of the extreme tilt., which is a good thing if you want to win long drive contests.
You might notice how much the tilt has changed from the top. It is much more dynamic to change the tilt in the downswing than to pre-set it at address.
But.....Jason does not have to hit his next shot off the ground like a golfer would.
As for how high they launch it. You might try to find some launch monitor numbers for the long drive guys. It is a big adjustment to actually see the ball when you are standing next to them, because it launches so high.
You wrote-: 'It is much more dynamic to change the tilt in the downswing than to pre-set it at address."
It is much more dynamic to change from a slight reverse tilt (pivot) at the end-backswing to a large degree of secondary axis tilt at impact. However, I suspect that it far less mechanically efficient than Jamie Sadlowski's swing. He has no reverse tilt (pivot) at the end-backswing position. He has the classical reverse K position seen in Hogan's swing.