I suppose this only applies to plugs but what the heck do you worry about the fish seeing the line for when the bait, spoon or plug is so large and noisy. My dad once asked me what made me think that a fish had enough life experience to know that fishing line was dangerous?? I have tried lots of line and not seen appreciable differences until AFTER the fish is hooked. I don't catch loads of fish either so you be the judge.