like the one guy said......pull back the dacron sheath until you expose about 4 inches of the lead, then break the lead off. Pull the sheath straight, then take 10 lb. mono and insert it all the way up into the sheath until it butts up against the lead inside. Tie a simple over hand knot (once through) and you are good to go. No way that comes loose, and you don't have to worry about running a swivel through the eyelets on your rod and into your reel. Make sure the knot is tied within the four inch area where you removed the lead. **This is however, a tough technique to do when you are in the boat and its windy and the boat is bouncing about.