True Thumb holds Grip - Thumb hold design has been around for over 15 years. It was an Italian innovation by creating an open thumb nob and later was adapted by other shotgun stock manufacturers. All though it was an innovative design but it’s lacking recoil protection during the shot where the forces of torque recoil backward to the shooter’s thumb and does create an uncomfortable feeling and fatigue toward the hand. The GPS has a completely close thumb hold design allowing the forces of torque passing through the wooden grip as one unit, therefore, the shooter will receive less recoil fatigue.