Third time is a charm. If it doesn't match to suit me after the third re-do, I either re-cut and re-do, or let it go; whatever mood I am in at that given moment--no one has ever said anything about my l/8" out of whack seam; and that is all I will allow before I will redo. But I haven't done serious points, so I may be speaking out of my league here--wait and see. When I get to the point that I am talking to myself, I just quit for the day, and go cook something.