I have seen a number of posts describing fish that have broken off without obvious cause. Presetting the drag will eliminate a lot of those break-offs because many of us sometimes set the drag too tight by guessing. The drag needs to be set so that the setting of the hook, the surge of the fish, and the friction of the line through the guides of a heavily curved rod will still not break the line. Remember, after your mono has soaked for a while it will lose as much as 10% of it's strength! Try this: using a scale on the end of the line, load the rod with a good bend and slowly walk away. When the drag starts to slip, the scale should read 25 to 30% of the line's capacity. This is an excellent starting point and then you can adjust during the fight to suit your style and the type of water you are fishing. Good luck and big fish!