An article from the Master Weaver newsletter (Fulford, Quebec) explaining how to calculate warp sett for any weave rather than relying on simple tabby and twill graphs. It gives a "diameter number" formula (N = .9 x square root of yds/lb) and a sett formula S = N x R / (R + T), where T is the number of ties per pick. It explains how to count ties from a drawdown and includes two tables: diameter numbers by yards per pound, and coefficients for many weave types. Worked examples for linen towels in tabby and wool in 2:2 twill are included.