[Mike O]

Yellow Line: where Low Point would be if it was opposite Left Shoulder.
Red Line: Impact Line
Blue Lines: Power Package and Primary Lever Assembly (Left Arm and Club)
Grey Triangle: Base of neck in relation to feet.
Green Line: Axis Tilt

The only way that Clubhead will be going up from there is if the Clubshaft doesn't get any more in line with the Left Arm. Which is extremely unlikely.

Tong,
Great work with the lines! Really helps isolate some of the conversation or at least take a little of the "seems as if" out of the equation. (I need to get up to speed on some of those computer programs!) In fact, I think "your" cover with the lines, looks better than the original magazine cover!

With everything- there is always room for interpretation, understanding, etc. So I'm not pushing all in on this one, but I'm still sticking with my original analysis. Specifically in regards to the upswing comment A) looks to me like if that clubhead goes down much more he is not going to hit it on the face properly and B) From where he is - I don't see why he couldn't retain whatever angles he has remaining (#1,#2, #3, #4 accumulators)until impact- afterall, at that speed and time between where the clubhead is now and impact - not much is going to happen- whatever down or up the clubhead makes is going to be small. I just think that due to everything else that I'm seeing and specifically if the clubhead could move up or down from that pre-impact location- that it would or would need to move up.

It would be great to get a photo at impact of this guy and then draw your lines showing any movement change between this frame and the impact frame. Even with lines it might be so small that you couldn't isolate the change visually.

Interesting topic though- and to isolate what I thought was at least one of the original questions-
A) What's happening here? I guess we're still figuring that out.
B) Can TGM explain it. This is where I think you and I had/have a different impression regarding what was happening. But regardless, in this context whatever is happening - I feel that TGM could definitely still explain it- after all you've put the question right in the TGM arena - regarding low point, angular motion, etc. I'm one who has never said that TGM had ALL the answers- but on this one whatever the answer is- I think TGM would have it.

With all of that said, I know that I'm just making an educated or maybe an uneducated guess- I'm not sure we'll really be able to answer the clubhead up or down issue, in regards to his swing and where it's moving from here to impact- let's see what floats to the top - as the posting continues.