I know I just learned to tie this knot and probably shouldn't be giving out tip's but here's one anyway, After sliding the mono in and butting it up to the lead, I put a small drop of superglue on the jacket where they meet. It soaks thru the jacket and onto the mono and lead and holds them firmly in place while you snug up the overhand knot. I also put a drop on the end of the jacket to keep it from fraying.