To add to the tips above... Also, each time you roll/advance your quilt and with each bobbin change take a moment to look at the back of your quilt, then if you see your backing a little off, possible wrinkle in the future you can adjust,smooth, fix it before stitching. I keep a 12" mirror tile on my quilting table and use it often to look at my stitching and make sure my backing is smooth. It only takes a moment to check and saves hours if something goes wrong and you have to remove a row or more of quilting.