I had never tried starching until I decided to try a Ricky Timms convergence quilt. Because of all the intersecting lines and cutting he recommended medium starch, which is 2 cups starch to 6 cups water. The receipe is on the bottle. I washed the fabric, then soaked it in the starched and dried until damp. It was amazing how straight the smallest piece (1 inch strip) was and almost all my intersections were dead on. I was very pleased with how the starch helped. I wouldn't do it for all quilts, but I will certainly do it when there are alot of small strips or bias' to cut and sew.