Some weavers have asked about the bulls eye. Perhaps a bit more information is required.
Personally I do not start out with a bulls eye. (It was a local weavers group who insisted that the ‘right way’ to weave was to begin with a bulls eye.) I have been making my way through museum collections, looking for old sashes which include a bulls eye. They seem to be quite rare. The only one I have found had the bulls eye done similar to the image attached, in two steps, not four as in the book.
Here’s what I would do:
Begin the sash just like regular.
Weave the first half of the sash (several patterns anyhow, enough to know how much of a ‘fishtail’ (down slanting weft) you sash wants.
At this point it is safe to go back to the starting place, and create enough of a bulls eye to bring the work to a similar ‘fishtail’ shape.
Now, the perfectionists will note the smooth join on the right and the jaggedy join on the left and they will want to fix this. Two solutions, actually:
1. Arrange for an odd number of threads in the central arrow area.
2. Arrange the threads so that the center two threads are either both ‘up’ or both ‘down’.
Either choice will mean that on one side you will ‘change to the front’ and and on the other you will ‘change to the back’.
Hope this information is helpful.