I made a quilt where one fabric was seersucker, and since the quilt was low-volume, the seersucker added a nice bit of texture. I was not sure if, after being pressed flat, it would have sprung back after washing, so I just used a finger presser to flatten the seam lines and pressed up to it from the other fabrics. The big problem was in measuring, as the flattened seersucker was a little bigger than puffed.
hugs,
charlotte