The leader helps a lot but I'm also rarely fishing with it and dragging it through rocks or heavy cover. It is a great open water line. Other than having to tie on a new leader I haven't cut any length of Nanofil off my rods due to fraying. In a year and half I've maybe gone through 5 yards of my Nanofil mainline, maybe. It is a line built for spinning reels and I think that's where a lot of people are having problems because they're trying to fish it on casting gear in heavy cover like braid, but it isn't braid. It may work okay on casting gear but I've never tried it for that. It's a niche line basically. It doesn't do a lot of things well but for the techniques it works well for nothing else comes close. The lake that Hi Salenity is referring to we're basically just ticking a small, lightly weighted plastic bait along the bottom as slowly as possible, Nanofil is great for this. I've tried several other lines and fished the exact same baits side by side with other guys and it just isn't really fair to whoever isn't using it. It isn't contacting anything, thus not getting any abrasions. Same goes for swimming a grub, light weight crankbait, or wacky rigging. It makes it possible to cast a mile and the low stretch allows you to set the hook at a distance as well. However, if you're trying to drag a jig through a rock pile, or fish a shakyhead you might as well just cut the bait off and throw it in the water because you're most likely going to lose it on the first hookset. So put it on a spinning rod when you're fishing open water and see if you don't change your mind.