I too was amazed at the distance I was hitting these clubs until I started chatting with the very knowledgeable salesman. I turns out that these clubs are not only longer in length, but they are also de-lofted a few degrees compared to my old set. Old set 3 iron 38.75" 21deg Burner Plus 4 iron 39" 22deg. Result - similar distance with higher ball flight. Don't get me wrong, this is a result I want and I ended up buying the clubs but you should question if you are hitting any comparable iron 10 to 15 yards further.