I press my binding as in bias tape but I don't cut bias but straight strips for square items, the pressing lines work as stitching guides. I stitch to back first, turn the binding to front to cover the stitching line and stitch down using the walking foot. Sometimes, especially in small projects I might use the zipper foot but I prefer the walking foot, it keeps the lines neat in front and using the backing color bobbin thread takes care of the back side.