I would agree that the arrow is not stiff, but I've gotten nock right results with weak arrows before. It is quite possible that the arrow is "reacting" off the WB hole, as this can happen easily, whether it is a vertical or horizontal thing. I also would leave the darn thing alone if he is shooting it the way you say. Also would agree with Paul, it is easy to worry too much about tuning the bow, and too little about tuning the archer. The way I'm feeling right now, I really think I will not seriously even consider another bow next year, and concentrate on tuning myself!