How long before a golf ball goes stale? (Found some that were 5 years old in original package) What effect does leaving a bag of balls in the garage through the winter have on the balls. (are they still good after they go through a hot/cold cycle?) What about balls found in water hazards? Do they become waterlogged? I've noticed that some balls seem dead sometimes and they don't fly as far as they should. Is there a test to see if a ball is still good?