Trevor,
I *did* use my friend, the search engine.
The first link you posted does not address my question of *where* to cut the helmet.
The second link has several great images but does not state *how* the cut lines were determined.
The third link, same result as the second link.
You see, there are so many posts stating Ć¢ā¬ÅĆ¢ā¬Ā¦and then I decided to fit and cut my helmetĆ¢ā¬Ā¦Ć¢ā¬ without actually describing *how* that was achieved.