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I know the basic idea of conventional swing: the ball moves through the air because the two sides behave differently. Reverse swing seems to involve a more worn ball and can move late, but explanations often make it sound like one scuffed side is enough to cause it.
What actually changes in the airflow as the ball gets older? Does reverse swing depend mostly on the ball’s condition, the bowler’s speed and release, or the weather? I’d especially like to understand why it can be difficult for batters to read compared with ordinary swing.
