But I'm starting to change my mind. There's just something to be said about the convenience of the loop to loop connection. Attaching a pre-looped leader to a pre-looped fly line takes seconds, not minutes, which can actually matter in the heat of the battle. I also think the manufactured loop ends on fly lines are at least 100 times stronger now than they were 15 years ago. I don't know exactly what happened, but most manufacturers seem to have figured it out.