I was reading an article in one of my fishing magazines, It's called "The Fishermen". It serves NYC & Long Island. It's a weekly newsletter/magazine. One article that got me thinking was regarding flurocarbon leaders. The author was stating that flurocarbon leaders are over rated, over priced monofilament. He stated in his article why pay more for Fluro when you can use Mono and save money. That got me thinking because I use Seaguar flurocarbon leader, which is kinda expensive. Depending on what I'm fishing for, I'll use 30lb, 50lb and 80lb. (I make my own rigs, don't use pre made hooks). I once ran out of 30lb leader while fishing for Porgies and went with 40lb Berkley Trilene Big Game mono, and it worked fine. Didn't notice a difference and neither did the Porgies...lol  The author suggested what ever weight you use in Fluro, just go up a few pounds in Mono.. So a 50 yd spool of Seaguar flurocarbon is 29.99 compared to a 300 yd spool of Berkley Trilene Big game mono 40lb is 12-15 dollars, and that would probably last 2 or 3 fishing seasons.
Now I know you shouldn't use either for fishing species with lots of teeth...I'm talking light inshore fishing. What's your take? Thanks, Vito..

There's a lot of truth to what that guy is saying. Like you Vito, I am also using expensive fluoro for leaders, but let me tell my take on this. I do a lot of shore fishing...but its mobile shore fishing...I cover a lot of ground. I can't pack a ton of tackle along with me, so everything I carry is in a small tackle bag. There's no room for a bunch of spools of line, so in the bottom of the bag is one spool of 12lb. mono...my choice as the "one line that will work for anything in a pinch". Practically every time out, I will bust a fluoro leader, and have to replace it with that mono. If it happens in the middle of a hot bite, I NEVER notice the action falling off after changing to the mono. I'm still rigging up with the fluoro at home, but my "in the field" experiences make me wonder why I'm spending the extra money!
                                                                                                                                         

Exactly Mike...I was just thinking to myself, why am I spending all this money on expensive leader, when less expensive mono works just as well! Come Spring, I'll let u know if I can make the change...sometimes old habits are hard to break...lol

A couple of observations on mono vs fluoro. Fluorocarbon line is a 'monofilament ' line, the difference being that what is genericaly called mono is a nylon filament as opposed to the fluorocarbon compound in fluoro. The up side to fluoro is claimed to be that it is: Invisible in water, highly abrasion resistant compared with nylon, and it is not degraded by sunlight like nylon. It is also denser and sinks where most nylon lines will float (at least initially). Cloudy or murky water will probably negate the visibility issue and so will aggressive fish. You may get better results with fluoro during a tough bite. As far as the resistance to abrasion, I haven't made up my mind on this. I do know that all fluoro line is not equal in this regard. The Seguar leader material seems to hold up much better than fluoro sold as a "main" line. Disclaimer: These observations are based on fresh water experience, although I do a fair amount of big water trolling on Lk Michigan.

I use fluoro line on my reels and Heaver mono for leaders. I've had mono break, but not fluoro. still not sure which is best for the cost.l