I have switched to Fluorocarbon and it works well. Less stretch than mono - and make sure you use a bead above the swivel to protect the knot.... Braid is another option but be careful how heavy you use... if you hang up the main line with 50 lb braid - it is tough to break.... I use 17 lb fluorocarbon as my main - and 10 - 12 lb mono for the leader.