I have the Pro 7 iron. I have improved each time I have used it. The first session I had a number of worm burners, shanks and line drives but felt a few good ones. The last session, I could get most of my shots up in the air quite nicely. When I hit balls with my playing 7 iron they were cleaner strikes. Funny, but some of my shots with the TS were so much better than my iron. I see ball marks on the lower part of the face now. Very pleased with this tool. It will be my practice and warmup club this season. I tended to hit a lot of heavy shots or pick them clean. The Tour Striker has helped me move my swing bottom forward. It will be my practice and warmup club this season. I love it!