I don't have the '06 version, but I have packs for the past 3 years. All fit tight, but you do have to use the small washer that comes with them. I initially thought I could get away without it and just have them fit up flush to the broadhead adapter ring (I shoot Axis 340 arrows), but they were slightly loose on that. Once the washer was used everything was tight. When getting the broadhead to spin true, I found that the small washer can help get them aligned by loosening the head, spinning the washer a fraction of a turn, then tightening back down.