A leader are a length of line that connects a fly line to a fishing fly. The leader is important in determining how the fly land on the water. If the leader is not of the correct taper, then the leader will not turn over proper when the angler cast the line.
If the leader dont turn over properly, the fly will land in a pile on the waters surface. When a fly lands in a pile, it may spook the fish, causing the fish to not eat the fly. The leader has a taper, which is a gradual change in the thickness of the leader.
How to Make and Use a Fly Fishing Leader
The leader is comprised of three different section, each with a specific function. The leader starts with a thick but section. The but section is the part of the leader that is attached to the fly line.
The but section must be thick enough to absorb the energy from the fly line. Following the but section is the midsection of the leader. The midsection must taper in thickness so that the leader is stable when being cast.
The final section of the leader is the tippet. The tippet is the thinnest part of the leader because it must remain stealthily enough so that the fish dont sight it. The Harvey-Wulff formula is a guide for anglers that wish to create their own fishing leader with a specific taper.
The Harvey-Wulff formula uses a ratio of 60-20-20 for the different sections of the leader. The butt section will use sixty percent of the total length of the leader. The remaining twenty percent of the leader will be used for the midsection of the leader.
The remaining twenty percent will be used for the tippet of the leader. The Harvey-Wulff formula allows the angler to create a leader that will preserve the momentum of the leader with the thick but section, will provide stability to the leader with the midsection of the leader, and will allow for delicate interaction between the tippet and the fish. There are different materials that can be used to create a leader.
For the but and midsections of the leader, most anglers use monofilament because it is more easier to manage. For the tippet of the leader, anglers use fluorocarbon so that it will sink in the water. Fluorocarbon is also less visible to the fish.
For anglers that are trying to fish for fish that rise to the surface, they would use nylon for the tippet of the leader because nylon will remain on the water. For anglers that are trying to fish for fish that stay at the bottom of the water, fluorocarbon is the better material for the tippet of the leader because it will sink toward the bottom of the water. The length and thickness of the leader should change based off the conditions of the water.
For fast or broken water, the angler should use a shorter and thicker leader so that it is easier for the leader to turn over weighted fishing flies. For calm and glassy water, an angler should use a longer and thinner leader so that it is more stealthy when it enters the water. In windy conditions, an angler should use a stiffer and shorter leader so that it is easier to cast the line in the wind.
The size of the fly will determine the thickness of the tippet. For flies with large hooks, such as a size 16 dry fly, the angler should use 4X tippet, which is roughly three pound of test strength. For large flies, such as a woolly bugger, the tippet should be thicker, such as 1X tippet because of the increased strength needed to fight the weight of the large fly.
Using a tippet that is too thin may result in the tippet snapping when a fish strike. However, using a tippet that is too thick will drag the fishing fly through the water in an unnatural way. An angler can build their own leader by tying the different sections of line together.