I use 2" strips and 1/4" seams. I make sure the edges are trimmed up straight. I sew both sides first. I sew binding to the back first, then press out flat with iron, then fold and press raw edge just to the edge of quilt. Then Fold over to the front, just covering the stitches from the back. Works for me. Until I started using a walking foot, my binding were always rippled, now they are smooth and flat.