Sometimes you have to wedge a pot closed, even when every instinct screams to open it back up and change something. Let the clay do its thing. There's a point where overworking something destroys the initial spark. Sometimes the cracks and wobbles are the story itself, and trying to sand them away just leaves you with dust. There's a whole graveyard of pots I strangled, trying to force perfection. Now I just let the kiln have its say; it's a much better editor than I ever was.