You wrote:
"So - without moving the men - let's see the views from above and
from the side so we can check the angles. There is no way that the
line you have drawn goes from right to left at about 9 degrees and
intersects JBC's right armpit."
No point in me posting any overhead view until this is sorted. Where are you getting 9 degrees?
We have had this discussion before. We are measuring the horizontal angle that a line from the SN through JFK's neck makes to the car direction. The horizontal angle at z195 is 13 degrees to the car direction, which is what I was using. The horizontal angle at z225 is between 9 and 10 degrees. I was assuming you were using a shot at z225.
The HSCA for Z190 has a right-to-left trajectory of about 13 degrees; it doesn't back-project to the SN but nearly so. I'm modelling Z193 because it's the clearest Z-frame in that area. You're modelling, I guess, Z195.
I don't see how our lines are that different. Similar line-of-sights and the trajectory similarly goes right-to-left and downward.
Not so much reluctant as I need to do more work for an overhead view. Some limousine details, Connally's torso twist and maybe Kennedy's shoulder line raised. The limo details are essentially done but the rest is major. On my system, it takes about a minute for each move, rotate or scale. I had enough in place a while ago for Zapruder line-of-sight views.
There are other 3D items I work on as well, such as the Holland Theory, the Sniper's Nest precision build, Kennedy head/torso with bone structure, BYP recreation, Z171 recreation, Hickey's semi-standing position and so-on.
What you need to do is show us where you have placed JBC in a view from above. Then, with the men in that same position we need to see a view as seen from Zapruder's position. The trajectory of the shot has to go from the SN to JFK's back, out of his throat to nick the left side of his tie knot and strike JBC in the right armpit. I have tried it at z195 and it can't be done. I have tried it at z225 and it can't be done. But maybe I have made an error of some kind. So I am curious as to how you have done it.