I know that if your shaft splinters , it would be dangerous to use . I have a couple of arrows that have a small fracture right at the nock . They seem harmless there . I'm not even sure how long I've been shooting them like that ( with the fracture ) . Can I put some glue on them and forget about it ? Or do I have 3 trashed arrows ? Thanks . If it matters - they are GoldTip Hunter 5575