Fly Fishing Leaders
Below are formulas for the Gary Borger style of leaders as he describes in his book "Presentation." Gary found that he was able to acquire the "S" curves desired during casting without having to tie many individual pieces of monofilament. The leader consists of a butt section, one or two mid sections and a tippet section, requiring two or three blood knots for each leader. These leaders are an adaptation of George Harvey's leaders and work equally as well.
Size 10 through 14 flies
Butt: 48" inches of 0.013 - inch
Mid: 12" of 0.010 - inch
Tippet: 48" of 0.007 - inch (4x)
Size 20 and smaller
Butt: 12" of 0.013 - inch
Mid-section: 48" of 0.10 - inch
48" of 0.007 - inch
Tippet: 12" of 0.004 or 0.005 - inch