Enhanced Character Edit/NPC head scale issue

[Irrational]

I'm currently attempting to create a NPC that uses both head and neck scaling. I tried to follow the tutorial on the ECE page saying I had to edit the mesh via nifskope. I highlighted the section that left me confused:

 

"-If you want to apply changed neck-length and head size to NPC.

If you don’t do this routine, don’t change the neck-length and head size. The position of hair will not accord with head. Be aware that head equipments won’t be in accord with head even when doing this task. Because of changing the size of mesh. If you want them to use head equipment of correct position, make a new race for it and specify its customized Skeleton.

When you want to apply the length of the neck / head size, change LipType to the 33.
You will find the hair is incorrect in the Preview.
Fixing this later by Nifskope, output the actor you selected to mesh with Ctrl + F4.
In NifSkope, open the NPC face data which is located below: MeshesactorscharacterFaceGenDataFaceGeom
Sorting files by date is easy way to find.
Choose "Hair ~" of NiTriShape, write the value, which is twice the length of the neck (Don’t forget to write a memo of it) to Z of Translation, + 1 to the size of the head to Scale.
Right-click, Transform-> Apply the NiTriShape, and then ignore the warning click "Try anyway".
Hair ~ made ??to all, please save.
It will be displayed correctly."

 

 

Can someone expand on this further? Where do I find the variable for neck length? No matter what I try to do, the hair mesh is lodge inside the NPC's head. Much help is appreciated.

[ThreeTen22]

I have had the same problem as well.  I cannot find an answer to this anywhere.