The following examples are from Al Campbell's advanced fly tying articles.
He talks about techniques used by Franz Pott, George Grant, Pete Sanchez, and Frederick J. Bridge.
The added dimension that results from weaving is more realistic.
For Potts most famous "Mite Series" sbs skip to Part 3.
Thanks Norm for noticing my error and for the following correction.
The sandy mite shown in link/part 3 is not a "woven HACKLE"
see the hair weaving process below the instructions for the "fizzle"
link/part 1, 2 and 4 are woven bodies not hackle
Addition: Feel free to comment on or share your experience with Woven Hackle or Woven Bodies.