Just looking at the back of these irons with the core "eye", it would seem likely in order to get a good hit or feel one must hit the center of the face which corresponds to the center of the eye. So a slightly off center hits would produce a shot with decreased distance and forgiveness....or am I missing something? If that's the case, one must hit these irons very accurately.
I can assure you I am not a consistent striker of the ball. I use all of the clubface. When I hit the GMax (same "eye" concept) I was more consistently hitting them in the center area as recorded by impact tape, but I did hit some out on the toe and they felt better than the competition on similar hits. When I later compared the G and GMax, I did not have tape, but the offcenter performance and sensations were similar. I got good, strong feedback that I was off center, but the feedback was not unpleasant and results were surprisingly good.
Twelve days and counting until mine arrive. . . .