I am a down-and-in bowler, usually throwing between 8-12, with a medium to fast ball speed (more than the average female). I bowl in two different centers with two completely different house shots.  The first shot is dry on the outside, oily in the middle.  Ball worked well for the first game (had the front 9), but after breaking down, ball was hard to control even with increasing my ball speed and adapting to the dryness of the lane, and moving further into what oil was left on the lane. The second center's shot is medium oil with a good back end, that does not break down as much due to house obtaining a new oil brand.  Ball did not reacted as much as I wanted it to, even with reducing ball speed and  throwing across the lane more, the breaking point was not easily found. Overall, I like the ball and I think it's be a great ball on a shot that is medium oil pattern, as long as ball speed is strong.