I think a lot of the problem comes from the process of winding the fabric on the bolts while it is still damp. This stretchs and distorts the fabric and the design. I find it so annoying when I am making my numerous Linus quilts. I tear the fabric so that I can get a straight line on both sides and even though I prewashed, machine dried and ironed the fabric before I tore it I can not get two straight pieces. The more expensive fabric does seem to be better but I can not afford to make at least 20 Linus quilts a month from QS grade $10 a yard plus fabric.