Adjusting speed, tilt, rotation, and ball roll are all the fine arts of bowling on a tougher condition. Whatever ball, surface, hand position, and release you have to use to get the ball to face up (Or fall back) is what you do. If you had to throw it slower, so what? It's not your THS. If you had to use charcoal, so what? If you had to play up 14 all night, so what? This is how you get better.