It has been determined that sensors used for the goalie travel might be of the wrong type. Sensors that detect the travel of the goalie should be of a fine focus type of sensors. The manufacturer of the sensor has incorrectly labeled the sensors and mixed in wide focus sensors. We have determined that these sensors could incorrectly inform the game of the position of the goalie causing extreme motion and damage to the rubber stoppers. To determine which type of sensors are installed for your goalie travel see the PDF file below . If you determine your game needs fine focus sensors, please contact our parts department, and have your serial number ready and use part number “UPDATEPSGOAL” and use PO “WFPUPDATE” to get your free update.