After a looooong hiatus, I'm back to work, but I've got something I'm not sure if I understand:
Looking through a POF file, some vertices in a submodel have only one vertex normal, while others have many. If I'm understanding this correctly, vertices with only one normal are for smooth shading, while the others are for faceted shading. For the ones with faceted shading, there will be one vertex normal per face which uses that vertex, and that vertex normal which the face uses will be parallel to the face's own normal.
So, my question: Am I understanding the above correctly?