Ok, so I just got my first spear gun a week ago. I've been Free-dive Pole Spearing for almost 7 years now, but not as often as i'd like due to the lack of water clarity where i live. Anyways though, I just got an AB Biller 42 from a friend of the family. He had bought it a few years ago and never used it, so i bought new power bands for it today, and a stringer or leash ( ? ) for the spear. I noticed though that it was missing the little spring like piece that it ties to. I got one, but am finding it nearly impossible to get the spear tip off to put it on. Any tips?