With the Jumbo Rickrack, you can actually just straight stitch following the curve of the edges of the rickrack. I've done it both ways.
I usually attach the Rickrack before I layer my quilt, though, so I don't have that straight line quilting going through to the back. I just have a narrow unquilted area where the rickrack is on top. I like the design of quilting just outside the edge of the rickrack. That narrow curvy space adds interest, in my opinion.