Originally Posted by WesternWilson
As you quilt, you pull out the basting in the area you are working in (I would probably leave it in and pull it later, but Sharon is working at competition level, so probably needs to pull it first).
I think this is actually a practical consideration. She is using a fairly thick tatting thread. If you sew over that, chances are you will also sew through it frequently. This would make it very difficult to pull out afterwards.