That´s interesting, I thought the sweet point is a point on ones neck but according to your words it is a point in time.
Coming to your book. There are more factors than a photo can tell, like neck diameter, diameter of the ligature, body weight, type of knot, knot position, duration of hanging etc.
Very good Mr Gustav Hartmann.
You're a science guy. You know how to measure human necks, how to compress them, how to measure ropes, how certain knots are more effective for certain effects than others yada yada.
Since my book is going to take a year or maybe more to write, I'll probably learn some of that too, but If I fail and make a
"mediocre" book, then you can download my book and add detail to that mediocrity. making it less mediocre,
and some other guy then can also redowownload it , and add even more detail to it. From a stick man
it will become Mona Lisa in no time. You can write your nickname in the credits page, even in the cover if you want.
In my book sweet spot will mean the pressure that you neck needs for = dizziness before fainting/syncope
But it will also mean the feeling itself. I don't see any point in separating the two. When
you've touched your "sweet spot" a second later you also get the dizzy feeling, right?
If you don't, then your sweet spot is something else, different from mine
it's your jugular spot, or your 30 seconds to faint spot.