or just can the leader.i don't believe line visisbility causes less bites.i've fished next to guys with flouro in clear water and outfished them with straight braid.i've had it go the other way also.it's a matter of your bait being in front of biting fish.leaders mean more knots and more places to fail.i hate when they go through the guides.the only concession i make at all to line visibility is to color the last 6 feet of the braid black.this makes it harder to see.