i dont know if we are all comparing apples to apples when it comes to fluoro here because I am in agreement with SRT8. maybe you guys are talking about fluoro mainline used as leader material? i only have experience with seaguar fluoro leader material in 8, 15, 50, 65, 130 and 200lb and there's just no comparison between it and mono when it comes to taking a beating from teeth, rocks or zebra mussels - the fluoro is hands down superior. i could care less about the visibility issue, the durability wins for me.