Hi, oh, yes, I used the correct yarn, Cascade 220. I did contact the author of the book and she wrote back and said that since the purse was knit and assembled sideways that I should have tried stretching the width as far as possible, however, the length stretched 4 inches which is way, way too much. I couldn't have possibly stretched the width enough during felting to bring the length up four inches. I'm feeling something else was going on. There was no mention in the pattern that stretching could occur.