I have one groovy board from R&S. It worked well. It was a 10" square board that I moved down my table and set in place with the needle in the center of each 10" square on my quilt and the stylus in the center of the board. It is a lightweight material but sturdy enough unlike the larger groovy boards that came with my machine. As a matter of fact, the Fedex guy left the package leaning against the garage door. My husband backed over it and there was no damage.