Even with slow greens, there can be poorly located pins. However, when greens get 11+ fast, sometimes, what appears to be a safe hole location turns out to be too severe. 0ne year at Silver Spring CC in a local US Open Q, on the 15th my 12 foot birdie putt missed the hole and went less than a foot past the hole, and then came back 5 feet past where I had just struck the putt. Fortunately, I kept the next putt short and walked off with a 3 putt . And no one in my group had a disaster. However the group behind us did, but they were already out of contention to advance. The greens superintendent syringed the green for the last 8 following groups, and I still managed to earn a medal. Without the watering, it could have been a competition disaster.