I don't know what to say. I ordered my set and took them right to my course that I have played for over 50 years. To set this up my driver swing speed is 85 to 90 MPH.(not very fast) . I know were I hit every club and what the distance is on this course. I going to make this short ok (160 yards out 7 iron I could not believe it). 140 yards out 9 iron. This is crazy and I love it. Just turn the clock back 20 yards. Ps I am 68..If you guys don't buy these your nuts.