Please can anyone let me how pick stitching is done so that it doesn't show as an overlapping backstitch on the underside? I attach a photo to show what I mean with oversize stitches in white basing cotton for clarity. I think that this would look unsightly on the coat edges. Have I misunderstood how to create the stitch? Does it just pick up a thread of the undermost layer like a pad stitch on the lapel, rather then go all the way through?