OnePutt I think it is more fast greens than hard greens that make the difference on stopping a ball. A 9 iron going 150 is delofted anyway and probably wouldn't stop unless the greens were slower. I hit a pw the other day that carried to the back edge of the green with the flag in the middle at 147. I don't generally hit them that way but just wanted to see if I could carry a p/w that far and it went off the back from 1 bounce. It is hard for spin to take effect if there is almost no grass for it to grab against. Now if you make them fast and hard like Augusta did at this years masters then it is hard to hold any ball unless you have a long landing area with tons of spin.