What part of "[t]he panel believes that the difficulty which Drs. Humes, Finck, and Boswell experienced in trying to place a soft probe through the bullet pathway in President Kennedy’s neck probably resulted from their failure or inability to manipulate this portion of the body into the same position it was in when the missile penetrated" do you not understand??

They believe it "probably resulted" from being unable to manipulate the body. What do they base that claim on? Possible rigor mortis? If so, that is unfounded, as no mention was made of the body being too stiff to manipulate.

What part of "[exit wounds] may be similar to the entrance wound in size if the bullet was fired from a high velocity rifle shot at long distance (eg a military rifle)" do you not understand??

FBI firearms expert Robert Frazier explained to the WC that the Carcano was a low velocity weapon: "The recoil is nominal with this weapon, because it has a very low velocity and pressure, and just an average-size bullet weight....This has a low velocity." 3 H 414
What difference is there between a low velocity weapon and a high velocity weapon that you do not understand?

Uh, turbonium, I really hate to have to break this to you, but an autopsy requires that many new surgical incisions be made in a body, including in the head.

Uh, Spitfire, I really hate to break it to you, but the autopsy photos the Parkland doctors looked at for comparison were of the body before the doctors at Bethesda were said to have begun doing anything to the body. Or do you think they only took photos after making incisions?