I asked a related question on an other site that ditch jigger answered. He also suggested fireline or cortland for abrasion resistance. I had 80lb whiplash cut off
... I am making the switch. Curious... what kind of hook in the jig? Could be a weak hook or the way it was in the fishes mouth. A painfull lesson I keep learning is that sometimes you think you are doing everything right and they still get away.