I bought the Ideal Seam Guide package at a quilt show. The guide will not stay in place at all. I bought a new backing for it and still it moves all over the place. The next time I was at a quilt show the vendor was there. I asked the man who demos and sell its and he looked at it and said I needed a new backing. It was new. He never tried it on his machine to see if it would stay in place. Mostly just gave me the what do you want me to do about it look. Maybe he used stiicker stuff on the one he was using. One quilter next to me at his booth said mine never stayed put either but his does doesn't it?