Progressively designed “Blade” optimizes shot trajectories from the long irons to the short irons. “Weight relief pocket” and inverted muscle design in 3 thru 7 iron allow for correct c.g. location to maximize playability. Tungsten toe weighting in the long irons (3,4,5) further improves stability and forgiveness. Traditionally designed short irons (8 thru PW,GW) provide the “controlled” trajectories preferred by better players.