The twisted or bump in the seam bothers me. I pin, I try to sew with the seams facing the feed dogs on top, but not every seam works that way. When I'm coming to the throat plate I gently lift the seam the tinest bit and that keeps the seam from bumping the wrong way. I do snip a few stitches if it doesn't lay right. I am not a perfectionist, but a few things bother me and that's one of them.
