Until you get a good feel for the line you will most likely tangle your leader in a million knots, not to mention having it wrap itself in a web around your fly rod. Much worse than a bird's nest on a reel. That leader will act like a nasty whip on occassions too. I somehow managed to crack my ear a couple times when I started. I still don't understand how it was even possible, as the crack effect usually occurs at full cast length. I've just always been lucky like that I guess.