The weave I do was patented in 1947 and I learned it a tender age of 13 and have been nuts for it every since.
A full 90% of the flies I dress are woven.
The size goes from a 55 mm Waddington shank
to a size 22 Rockwork.
If you want look at how I weave here is a link to my instructions on my site http://www.speyshop.com/weave.htm.
This will give you a look at the basic technique
and is a good place to start.