I've seen situations where the flouro made a big difference over mono shock leader for stripers. The biggest difference I've seen is fishing for stripers on the flats of Cape Cod Bay where the water is real clear and fish are skittish because of the real shallow water. Flouro usually beats mono 3 to 1 in my experience on the flats.Do you think using flouro increases your sucess ? When flouro first hit the market it was claimed to be invisible in the water. If that was true 50 lb. test would work as well as 4 lb. test. I use mono and flouro leaders and can't say one gets more bites than the other. This is in saltwater where I use up to 60 lb. test shock tippets. The main advantage I see is that flouro has better abrasion resistance.