I have been known to turn the seam in the middle so that it points in the right direction. Having said that, I don't ever do any stitch in the ditch quilting, or right next to a seam line. Those turns could show up if you do your quilting like that. My quilting is all free hand or pantograph designs. Mostly pantos. They hide a multitude of piecing sins.[/QUOTE]
Sometimes, it is not possible to keep the seams down flat for a variety of reasons such the number of seams and so on. A quilt store owner showed me how to turn the seam in the middle and press it down. How liberating! I quilt my own tops on my mid arm, and those seams do not cause any problems. All my quilting is FMQ and there is no SITD.