Seems everyone uses a lot heavier leader than main line. Why is that? Seem's to me you hang up and end up breaking the line to get it loose and the line you break will be the main line and not the leader causing you to loose the swivel, sinker and hook. Watched a guy on you tube and he was worried about hanging up on bottom so he went without a weight. his main line was 40# and leader was 50#. the bait and hook get hung up somehow and the main line will break befor the leader anyway, even without the weight. Why don't those guy use say 50# main and 40# leader. I went to 20# braid on my catfish rod, around here a 6# fish is big. That let me up my leader to 10# or I could go to say 15# and if hung up break the leader and loose some leader and a hook rather than leader, hook, swivel and weight! I don't understand the idea of leader heavier than main line!