decided to shot them this year . was shooting yesterday and found out that if you dont have them tight enough they will come off the arrow before it hits a target at 30 yards the head will go one way and the arrow another it missed a 24 inch square target.never thought it could happen (come apart that is). since the arrow is heavier than the tip i would think it would push it and not allow it to separate. the point has to turn 7 more times than the arrow to come apart. other than that they fly great at 310fps and hold up much better than the orginal ones. ive shot these a couple hundred times and other than getting dull they look fine.