Scientific Anglers Mastery Double Taper Floating Fly LineThe durable Mastery finish and the Advanced Shooting Technology (AST) line coating speeds line through the guides quietly and smoothly. Mastery double taper floating fly lines are the hands down choice of most small stream enthusiasts. The lines excel in making short and medium range presentations and will lay down on the water with little or no commotion. The smooth, slick Mastery finish and gentle taper is ideal for this line and will help make