|I use "fast tube"- saw this at a booth in Road to California quilt show. Cut your fabric the size your pattern calls for plus 1/4 in.
Sew right side out wrong sides together. Place on fast tube, put wire inside tube and catch cording at end and pull through tube.
Then pull back down taking material off tube and onto cording.
and zippy quick pipping! Really fast- thus the name Fast Tube