The bullet still goes to the left of JBC's mid-line. You would have to put JBC's right armpit to the left of the centre of the jump seat in order for it to begin to work. Here is the trajectory based on a scale 3D model of Dealey Plaza and the limo with the limo and occupants in positions consistent with frame z197.
Your SketchUp model has been thoroughly discredited.
But your "SBT Fact" has more than just trajectory problems. It does not fit with:
1. at least 22 witnesses who said that JFK reacted to the first shot as if he was hit by it. Not a single witness said he waved or smiled afterward, let alone for 3 seconds.
Went through those already. How many witnesses could see clearly the President's face or much of his right hand?
In your paper, you state:
"At least 16 witnesses recalled that the President reacted
to the first shot by leaning left and bringing his hands to
his neck.
(footnote) From frame 167 to frame 198 of the
Zapruder film the President and First Lady turned to their
right to smile and wave at the crowd. No one said that the
smiling and waving occurred after the first shot."
Time to review the witnesses that were in the footnote mentioned above.
- T.E. Moore (could not see the President's face and not much of his raided right hand;
Moore's "slumping forward" could be head nod in the Z170s as seen from behind.)
- Nellie Connally, whom you quote: "I turned over my right shoulder and looked back, and saw the President as he had both hands at his neck." How can Nellie be reacting to a first shot at Z192ish if she doesn't see the President until he has his hands at his neck area? That's nearly two full seconds before she sees Kennedy if she heard a shot at Z192.
- David Powers (can't see the President's face and maybe not his right hand)
- Gayle Newman
- William Newman, whom you quote: "The President jumped up in his seat, and it looked like what I thought was a firecracker had went off and I thought he had realized it. It was just like an explosion and he was standing up." ("Jumped up in his seat" and "he had realized like it" seems like the President was startled, not wounded.)
- John Chism (shot you referenced occurred before the last shot)
- Faye Chism (shot you referenced occurred before the last shot)
- James Altgens, whom you state: "He said his z255 shot was after first shot and before any other." (But his testimony shows he was really only sure of two shots, but when pressed, he placed a shot between the two shots he was sure of.)
- Abraham Zapruder (from the quote you provide, he could be be talking about the Z223 shot)
- Clint Hill (even you acknowledge he only recalled two shots; Hill's "slump" shot could have occurred before the last shot.)
- Linda Willis (she wouldn't see the President "grab his throat" and her view to the President at Z223 was probably blocked; more likely she saw the President when she had a view of him earlier -- "kind of slumped forward" could be the Z170s head nod as seen from behind.)
- George Hickey (can't see the President's face; Hickey claims 2 to 3 seconds passed before he saw the President "slump"; three seconds before Z223 is Z168.)
- Sam Kinney (can't see the President's face; Kinney's statement "I saw the President lean toward the left and appeared to have grabbed his chest with his right hand" could be the Z170s head nod and subsequent right hand lowering as seen from behind.)
- Paul Landis, whom you quote: "I saw him moving in a manner which I thought was to look in the direction of the sound." (Doesn't sound like a witness for leaning leftward nor bringing his hands to his neck. Also can't see the President's face.)
- Cecil Ault, whom you describe with:
"Viewing from court house on Houston. Reported to
have seen JFK rise up in his seat after first shot."
(But Ault's full comment "Following the first shot Mr. AULT noted that President KENNEDY appeared to raise up in his seat in the Presidential automobile and after the second shot the President slumped into his seat" has the President slumping on the second shot.) - Harold Norman ("slumped or something" could just well be the Z170s head nod or Kennedy brushing his hair in the Z150s.)
That's 16 ...
- Malcolm Summers (shot you referenced occurred before the last shot)
- Mary Moorman, whom you quote: "As I snapped the picture of President Kennedy, I heard a shot ring out. President Kennedy kind of slumped over." (Can't quite link her taking her picture as the first shot occurred.)
- Jean Newman (shot you referenced occurred before the last shot)
- Charles Brehm (shot you referenced occurred before the last shot)
- Pierce Allman, whom you quote: "the President was ducking from the first shot." (Couldn't see the President's face nor much of the right hand; could be head nod in Z170s as seen from behind.)
BTW, several of your first-shot "slump" witnesses thought the first two shots were closer together than the last two.
2. at least 40 witnesses said the last two shots were perceptibly closer together than the first two. 6 thought it was the other way around.
3. dozens of witnesses put the first shot after z190, including two photographers (Hughes and Betzner), occupants of the VP car and VP security car, and witnesses standing on Elm St.
Betzner said he was winding his camera and looked up from doing that when he heard the first shot. He's still lowering his camera and had yet to look down when he goes out of the Zapruder film at Z207. Your Z197?? first shot has already occurred but a Z223 shot is near to occurring. Betzner said he could only recall two shots but thought he heard another, so his "first shot" is not literally the first shot.
Hughes says he stopped filming about five seconds before the shots were heard. Problem for your Z197?? first shot is that he quits filming at Z185.
So as far as the SBT being a "fact", it isn't. It is a theory. And it is a theory that does not fit with a great deal of consistent independent pieces of evidence. There is a much simpler explanation than the SBT that fits with all the evidence, including the overwhelming evidence that Oswald was the only shooter. Three shots, three hits, one shooter. .
The SBT theory is as simple as it gets. Your theory is unbelievably complicated.