Lights, camera…part IV

So after rambling on for three posts, I'm finally getting down to the nuts and bolts of writing action scenes.  One of the first pieces of action-writing advice you find is usually "Use short sentences and sentence fragments," because they pick up the pace, and an action scene has to be fast-paced, right?

People who think this have obviously never been to one of those martial arts movies where half the action scenes are filmed in slow motion…and still work perfectly well (sometimes...