At the house where I bowl both PBA Experience and regular house shot leagues, the house shot is technically 42 foot, but the buff starts early enough that the outsides hook a ton close to the gutter, with an early but gentle hooking motion, but there's less buff in the middle, which allows for more length and sharper backend motion. By comparison, bowling on the fresh PBA patterns, the ball looks like it gets kicked left when it gets downlane until the transition starts to get the ball reading the lane earlier and smoother. Technically the same length of oil, but the amount of buffing makes a huge difference in downlane motion.