They DO have a trap door in the LA production (at the Pantages). They don't have the elevator/lift to raise and lower a performer, however. That's what malfunctioned and nearly killed Idina in one of her final performances on Broadway, when she stepped into a 4-foot hole. I can't imagine them touring a hydraulic contraption like that anyway, since no two theatres are going to have the same dimentions under their stage floor. The trap door itself is used more sparingly in the LA show, but rest assured, Elphaba pops up through it when Fiyero knocks on the floor... Just like in the Broadway production.
"Jaws is the Citizen Kane of movies."
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