Horne-Crudele 3- Right Side Rear Blowout is Physics-Bullet Flows to Weak Point from Prior Rear Entry

Earlier rear entry:
https://rumble.com/v6uesbn-horne-shot-1-from-dal-tex-to-lower-rear-of-skull.html
The question which this answers is why the rear exit would be on the right side and not the left, if the shot came from the right/grassy knoll.
The question this doesn't answer, unless I missed something, is how the exit debris hit the motorcycles on the left if the shot exited through the right. The first thing to take in mind is the Z film is altered and may or may not be accurate of which way JFK's head tilted. If accurate, JFK's head was tilted AWAY from knoll as the bullet hit, which makes even less sense of the debris hitting Hargis on the left, with the exit wound pointed at a steeper angle toward the knoll. (Fiester says that shot would have to come from far side of steet/the South Knoll:
rumble.com/user/johncleer?q=fiester)
This suggests the Z Film is not real OR that the skull debris came not from the huge exit wound but the upward shot that landed high above the right eye, as seen in stare of death Parkland photo:
https://rumble.com/v6v1tuz-dark-legacy-nyt-reports-on-112263-drs-perry-and-clark-saw-right-side-front-.html
https://rumble.com/v6uesm7-doug-horne-on-the-likely-shot-from-storm-drain-2-or-3-to-high-right-forehea.html
https://rumble.com/v6uesz9-pre-existing-fbi-report-disputes-wc-on-limo-location-storm-drain-best-expla.html
So it's hard to imagine a clean answer for the debris exiting the right wide of the skull then hitting the DPD on the left.