My DIL doen not quilt,but she can spot a mistake a mile away. lol She can see if a seam is 1/32nt of an inch off.She will insist that I fix it. I wont and we argue.lol If the mistake is minor like that I doont worry about it. I had fun. Now when I make my blocks I call her and say now is the time to tell me if something looks wonky. So now she is my quilt police. I really like that.