This drill builds awareness of green speed by focusing on relative change instead of exact stimp numbers. Players often get caught up in trying to assign precise measurements to green speed, but this drill promotes a more instinctive approach—training players to sense whether the surface is playing faster or slower than before, using feel, timing, and arm bend rather than hard numbers. By tuning into arm bend and stroke timing, players develop adaptable instincts—essential for making real-time decisions on unfamiliar or changing greens.