do you sew with a 1/4" seam? Or a 3/8" seam? Or something different? I am going to be machine sewing the back first and then machine sewing the front with a decorative stitch but need to know what length to use. Thank you. It's a big quilt and I really don't want to mess it up. And I'm not a binder. I usually pay someone to bind my quilts. It's my least favorite part. But for now on, I am going to try to bind my own, even if it is by machine only.