No, I'm afraid he's wrong, because Boyce's misleading composite photo doesn't tally with the real distance between the handle top and corner of the ball-catch housing, i.e. over 2 inches not 1.25. Jane already measured several months ago and affirmed it to be the former, at nearly twice the distance between the top two marks on Nevill's nape. Use the forensic ruler in the second photo to measure the distance in centimetres yourself, then convert to inches if necessary -
Bear in mind that the spine is curved and the neck steps in with most people, Curiosity!
Look at the shape of a human body side on!
You may find that the base of the neck stepping in accounts for the extra 0.75 inches you talk about!
The available photos only show the marks from behind remember which is misleading!
Experiment some more please!