I tried 4lb I believe it was clear on my ultra light a sales person at sportco swore by it seems like the knots broke easily personally I don't care much for their hooks either with all the hype on how sharp they are I haven't found one yet that didn't need to be sharpened also a few of the eyes on the hooks I tried weren't closed all the way probably should of sent them back to them but I didn't want to hassle with it kinda cool looking stickers that they have but my rig wont be wearing one till their products improve