unless these markings have been removed or covered by the bowling center proprietor. Brunswick GS series pinsetters The GSX is Brunswick's current pinsetter. It uses a conveyor belt on the pit floor to move the pins to a vertical elevator system similar to those on AMF 82 series pinspotters, while the ball exits the pit at the side through a ball door. Pins are loaded using a combination of belts. The ball-return system uses an under-lane accelerator as opposed to a lift. It lowers the pin table on every cycle to determine scoring. The original model in the GS series (GS stands for Game Setter) was the GS-10, principally designed by Augusti Schmid in Scherzenbach, Switzerland to promote the sport of bowling in Europe. In 1984, Brunswick Bowling & Billiards Corporation acquired the rights to manufacture and sell the GS-10. The mechanical portion of the pinsetter was originally manufactured in the Brunswick plant in Stockach, Germany; in 1999, it was relocated to Hungary. The electronic control system is manufactured in Michigan, near the Brunswick plant in Muskegon, Michigan. Subsequent models are: GS-92 (1991) – Incorporated changes to the pinsetter to make it quicker to install and easier to service. GS-96 (1995) – Incorporated changes in the software and hardware to speed up loading time of the pinsetter. GS-98 (1997) – Incorporated a new consolidated electronic system that uses a two control box system to reduce the number of printed circuit boards needed to operate the pinsetter. Also, software and hardware improvements to make the pinsetter more efficient and user-friendly. GS-X (1999) – Incorporated a setting table and ball accelerator redesign that reduced the number of parts, the number of adjustments, and the amount of preventive maintenance required. In 2000 the GS-X consolidated electronics was replaced with a single box electrical system called the NexGen Controller. This change reduced the overall size, weight, and number of electrical components needed to operate the pinsetters and made the setup for the machine more user-friendly. An additional modification lowered the overall profile of the pinsetter, allowing it to be installed in centers with low ceilings and reducing the number of parts and adjustments and the amount of preventative maintenance required. The GS is characterized by a sweep that rotates downward (as opposed to dropping) as soon as the ball enters the pin deck. A GS-X shows “gsx” on the sweep when it is down,