Different boat, but it may help….
The Laser2000 also inverts fairly quickly. Quite a light boat compared to the W, so you dont need much weight on the plate to prevent it turning, but you do need some.
If it does go fully upside down, the suction on the hull prevents it coming back up level. People find its LOTS quicker if one person stands / grabs / puts weight on one transom corner: sinking one corner of the stern seems to break the suction on the water allowing the boat to become level much quicker than both leaning on the centreboard.