This putting hack focuses on improving green reading by introducing the concept of a "gutter" to quantify putt reads. The gutter represents the area where a ball should end up if the read is correct. A correct read will leave the ball within this defined zone, while misses below or outside indicate read, speed, or start line issues. The hack emphasizes that while most players and coaches focus on start lines, a good read is crucial for consistent performance. By tracking misses and understanding whether the issue is the read, speed, or start line, players can make informed adjustments to improve their putting over time.