{Hello Kirito here! I hope you find my answer helpful!}
Clay project should dry for at least 7 days before bisque firing to ensure it does not blow up in the kiln. Moisture (sudden change of water into steam) and air bubbles (trapped air expands) can cause the explosion.
because arena's seats are all around the stage. Therefore if they want to use the drape they would have to construct it all around the stage which can be expensive and difficult.
