I use Ashenhurst’s rule to take the mystery out of sett (warp or weft-wise). Check this out in my Book #1, Winding a Warp & Using a Paddle” and also in my new book, “Weaving for Beginners“. In both books I’ve devoted a chapter to determining the ends per inch (epi) or sett. Book #1 has more details. In upcoming posts I hope to explain it and say why it’s so very, very useful. If you can read the book(s), you’ll be ahead of the game. I’m swamped with getting my room in my studio emptied–more about sett next week or so.