Yesterday I recieved my 716 Cavity Back iron's and I love them! Before I had the 712 AP2's and I needed an update. These irons are the first time putting an X-flex shaft in any of my clubs in the bag. I got the AMT x shafts in them and they are perfect. I had the Project X 6.0's in my AP2's before and the AMT's kill it. I am very happy with them. They just shine!! Thanks Titleist for making the best iron in the game of golf!