I played the 9 ball ghost on a 7' Diamond yesterday scotch doubles with a 581. I'm a 558. We played 2 sets. We lost the first 3-7. We lost the second 5-7. Then we played a normal set against each other. I lost 5-7. It was a really good experience playing scotch doubles against the ghost. We were not coaching, just playing our own game. But seeing the other's pattern choices was fun. I think I'd like to do that again.