I've tried almost every game-improvement set of irons out there (X-20s, S9s, CG Golds, A2OSs, MX-25s, etc) and none even come close to the level of forgiveness, feel and look of the AP1s. The steel shaft (DG HL) is exceptional; don't be fooled by the high launch label--this is a mid-launching shaft. Oh, and be prepared to gain about one-club distance with each--they are LONG!