Is it breaking at the knot where you tie the leader to the braid or where you tie the leader to the bait....I've used several brands of fluoro, and Vanish is my least favorite....I had it trouble with it breaking a LOT...Thought I might have gotten a bad spool, picked up another one, and it did the same thing....The super glue on the knot from the leader to the braid is a great idea, and should be used any time possible