15 rows of straight stitching will come out fairly quickly if you have a nice little pair of sharp nosed scissors. Clip a stitch every 3 to 4 stitches on the back and then pull the thread out on the other side. If you do a couple of rows a day, you will be done in a week. I don't know what kind of batting you are using but I have the best results with 80/20 batt.