RE:Basic Leader Formula - A.J. McClane's
Following L.Kreh's very simple formula, I like a 3-piece butt section with each piece half the length of the previous section and a 2' tippet.
9 ft. leader:
4 feet of .024
2 feet of .021
1 foot of .017
2 feet of fluorocarben tippet, 12lb.