The wording is what was FUBAR. The bullet did not hit JFK in the back of the neck. I don't know why he proposed that. Perhaps he misunderstood Humes's testimony.
I agree with 99% of what I have read in the WCR. If I could change one thing in the report, that would be it.
If I could change two things, the second one would be their statement that SBT is not essential to the finding that JFK was killed by a lone gunman. If there was no single bullet, there had to be a second shooter.
Ford didn't see the autopsy photos; he had to rely on the autopsy report and the testimony. Warren absurdly decided not to allow anyone, including the members (not just the staff), to see them.
From Humes' testimony: "The wound in the low neck of which I had previously begun to speak is now posteriorly--is now depicted in 385, in 386 and in 388."
Here is what Ford saw:

And 388

Placing the wound on the neck is completely understandable based on what he heard and was shown.
From the Shenon book on the photos: "Now that he [i.e., Warren] had seen the photos for himself, Warren said he did not struggle about what to do with them. It was an easy decision: they would be locked away, forever, unless the Kennedy family decided otherwise. No one outside the family had the right to see them—and that included the other members of the commission and its staff, Warren decided. He ordered all of the autopsy photos, as well as all of the X-rays, be sent to the Justice Department, where Robert Kennedy would have control over them. Warren convinced himself that the commission did not need the photos and X-rays, since the navy doctors who had conducted the autopsy were available to testify and the commission had full access to the written autopsy report, which contained hand-drawn diagrams of the wounds to the president’s body. The photos and X-rays were of no special value, Warren declared. The commission, he said, would have “the convincing testimony of the Naval doctors who performed the autopsy to establish the cause of death, entry, exit and course of the bullets.”