With 2 lasers you can simulate the bullet's straight line trajectory thru JFK's back/neck. Point the 2 lasers at one another as depicted in my graphic to form 1 beam. Now get in between them so that the bottom laser strikes your throat below the Adam's apple at approx. C6. Does the top laser strike your back at T1? If not, reposition your body so that it does. Then take a couple of pics showing your body position and post them to support your claims.
I am not sure how that is any more accurate than a putting perfectly straight line through a 3d model at an angle that can be measured to within 1/100th of a degree. But since you have already tried it, you should be able to show us your photos. Where are they? How can they possibly be materially different than
this photo?
You can do the same for Connally's back wound. Then superimpose your surrogates onto the same photo to show how their bodies must have been orientated to make the MB work. I couldn't do it without bending over so much that the bottom laser struck my chin.
I agree with you that the path from the SN through JFK's neck exit wound does not strike JBC in the right armpit or anywhere on the right side. But it is not because it goes too high. It goes too far to the left. You have to use the correct relative seat positions. You can get those from photos, such as Croft's. JFK's head was about 4" higher than JBC and about 30" behind. That put his neck exit wound about 24" from the plane of JBC's back.