These irons are extremely interesting. In my set (stiff shafted) I hit the 7 - PW farther and higher than any iron I have ever used. I was a former +1, and have played a large variety of irons. I consistently hit the PW 165 yds on the fly...and the seven Iron up to 220 yds on the fly...as long as I kept my swing speed smooth and steady. Have hit the 9 iron successfully on a 196 yard par three...no exceptional wind or altitude From the 3 - 6 iron they played similar to most other irons with nothing too noticeably exceptional...except that I hit my 7 iron as far or further than my 5 iron??? I was obliged to carry three other wedges to manage shorter distances. There did not appear to be any discrepancies in the heads or shafts for the 3-6 iron as compared to the 7 - PW.