An auxiliary device and a method for finishing and calibrating preforms that are removed from a multiple tool in an unstable shape, the calibration process being performed with compressed air immediately after removing and withdrawing the preforms from the multiple tool. When the detected rollover motion is expected to develop into a serious rollover motion, non-rolling-side vehicle-occupant protecting device is located on a non-rolling side of the vehicle is operated. The priority index table is coupled to the plurality of rows of CAM cells and is adapted to store a plurality of priority numbers, each priority number being indicative of a priority of a corresponding data word stored in the CAM array.