Paul, the bottom line is to account for the total mass of CE-399 after the shooting. Connally denied access to the fragments in his wrist and rib upon his death so we can only speculate how much material was left in his body. It also smashed thru JFK's C7 vertebrae so there was probably material left there. However, despite these discrepancies, CE-399 was pristine (95% intact). So how much mass was actually lost? Was it more than 5% of the total mass or was CE-399 "pristine"? That is the question.
You've seen photos of CE-399?
How can that be called pristine? If it's not pristine why are you even open to that notion? It's no wonder that after 54 years this case based on original evidence and testimony hasn't advanced in any significant way.