I have personally experienced and read of others’ experiences where, for some reason, the gap wedge that comes with a set of irons does not seem to gap in with the rest of the set. Sometimes it is even so with the pw, too. What are the physics behind why this would be the case? I cannot seem to comprehend in my mind why. I have seen it with three different sets of irons and it seems most prevalent (reading others’ experiences, as well as from my own observation) in irons sets that fall within that “players distance” profile.