If you sew a 1/2" seam, make sure you do not cut into your seam when clipping, as your quilt will come apart. 1/4" cut is great, and if you cut 1/4" apart will give you a frilly rag. you can cut 1/2" apart for a more relaxed rag. Not sure what your pattern calls for,but you can rag the outer edge too, just make sure you sew 1/2" seam and clip like the rest of your quilt. Have fun!