Two non-movable plates mounted on the outside rear of a personal watercraft, extending below the lower edge of the hull. These plates provide lateral resistance and prevent the hull from sliding out at the rear which could initiate a spin. As these plates move laterally while in a turn they are designed not to adhere to the water by vacuum. When returning to a straight course out of a turn, the necessity to over steer is greatly reduced and the momentary loss of control is eliminated. Being cons...