The idea is really not bad, but wrong linetype 
If we use in these special connection part only one line like
studfemale.dat (i named it better this way)
5 16 0 0 0 0 0 0 0 0 0 0 4 0
we have the following information.
1) this file give errors due to identical vertices - but we do not need to check this file
2) the position where the third vertex is, is the entry point for the middle of the stud.
3) the position where the fourth vertex is, is the max. point that the stud should be able to reach.
By having this simple file an application can have all the information it needs for stud usage. IMHO.
If we use in these special connection part only one line like
studfemale.dat (i named it better this way)
5 16 0 0 0 0 0 0 0 0 0 0 4 0
we have the following information.
1) this file give errors due to identical vertices - but we do not need to check this file
2) the position where the third vertex is, is the entry point for the middle of the stud.
3) the position where the fourth vertex is, is the max. point that the stud should be able to reach.
By having this simple file an application can have all the information it needs for stud usage. IMHO.