If I clip a gensec and don't include either end, then view from the end of the gensec along its length and view in wireframe, the model currently does not show any lines to indicate the section outline. It shows nothing.
Also a lot of gensecs don't display correctly in wireframe, whenever curves are involved like on SHS and RHS. Bulb flats don't display at all except for the wirelines at either end of the section showing the shape.