But Oswald could have fired earlier as the car passed under the tree as the car was never really obscured from view.
We don't really know that he wouldn't have fired through a few leaves. But he could have tracked JFK while he passed under the tree branches and fired as soon as he was clear. That would have been here:
when JFK had just passed the lamp post and had not yet reached the Thornton sign. That is between z190 and z200.
The difference in downward angle is not much - about three degrees, which is within the error range of the estimates of the angles that JFK was leaning forward from the horizontal as he travelled down Elm St. based in the Croft photo and his subsequent movements. [Note: The FBI measured downward angles at z222 to be 20°23' and at z207 as 21°50' a difference of 1°27' over 15 frames. Extrapolating that another 15 frames back to z192 the downward horizontal angle would be 23°17', a difference of 2°54'.] See: CE884, 17H902
Your LN 3 shot, 3 hits, theory at least makes more sense than one where the TSBD shooter (whomever he was ) would in a sudden panic , stand up and attempt an early unaimed shot FAR off enough to miss the entire right SIDE of the limo( as per the photo of the LOS perspective from the 6th floor SN window that you previously posted).
At Z190, I do see that JFKs back and neck angle may be more vertical relative to the horizontal line of the limo, as he might have moved his upper back forward thus not leaning so much back in the seat as he was at Z224. But I’d like to see an experiment with dummies to test out the shot and see if it aligns better than the Z224 shot (2003) which by the FAILED, as the bullet exited well below the throat wound level.
That Z190 approx frame coincides (imo) with Harold Norman’s description seeing the president with his right hand up trying to brush his hair when Norman heard the 1st shot. Then the president slumps as Norman describes. jFK slump leftward is maybe enough to theoretically have allowed a Z270 shot that only hit JC.
I have criticized your theory because of the lack of reactions by SS agents and only the Willis girl slowing down. But since I’ve given some logical reasons why Clint Hill may have missed hearing a 1st shot then I suppose it’s possible that Willis could be more sensitive to a 170 db rifle shot due to not having been desensitized to sudden loud noise of continuous motorcycle backfires as weed the SS agents.
