Start again...I also do a test of about 10 inches..to make sure I like how much folds to the back...especially if I am going to sew the back on by machine too...I sew always from the front for the first ripun and then to sew the binding to the back....I do not like to sew the binding on the back and then turn it over and sew it down on the front..I don't like that stitch line showingkn the front ...