You want to make sure when you line up the binding to start stitching that the fold you have done is perfect. I leave just a tiny bit of the fold over the top edge of the quilt. I am talking about less than 1/16 of an inch. If your fold is a bit off, it will show. Also another trick is when you bring the binding to the back, make sure you fold it the opposite of what it on the front. You don't want the bulk on both sides to go in the same direction. HOPE the picture helps. It appears that the folds are going in the same direction but they are actually opposite because one is the front and one is the back. This binding was the most difficult I have ever done. It was a cut strip of 1.75" the attached as double fold.