Stopping the camera focuses the attention of the audience, “Look at this!”
The camera guides the audience. If the camera is always moving, the audience has a harder time determining what is important; it all seems the same. Differences tell the story. Make sure stopped is stopped.
The transition from moving to stopped or stopped to moving must be clear and well timed. Does the frame rush at the actor and lock? Or does the camera slide imperceptibly until the frame holds a key in the foreground?
If the Steadicam move is indecisive, out of sync with the actor, or simply “breathing” up and down ever so slightly, it is weaker and less interesting. To get the most storytelling bang for your buck, there needs to be a clear difference between ...