oohhhhh.....my Mom used to be a seamstress and when I started to make quilts, I had asked her how to get an even edge on the material. She had said to start by pulling threads from the cut end of the material and keep pulling until you get to a thread that goes the width of the material. It does give a true edge, BUT when less expensive fabric is used, the weave itself is sometimes WAY WAY off, thus giving an even more crooked edge.