This past week all of the greens have been aerified. We used a tine that produces a 3/8 inch plug, and our spacing is 1 1/2 inches between the holes. This allows us to remove a lot of organic matter that has built up over time. There are a couple advantages to using a smaller tine; the greens will recover faster and disruption to the golfer is less. However, the disadvantage is the holes can be very difficult to fill in with sand. Below are some pictures of this process.