My LQS owner tells us to ask this question -- Can you live with it (meaning any tiny error)? If yes, don't worry about it and move on. If no, then stop and fix it. Once the quilt is finished, knowing there are errors, stand back about 6 ft and see if those errors stand out. If not, don't worry about it...There isn't a "yes" answer because you won't be able to see those minor mistakes. Hope this helps ease your mind. Example - look at my avatar pic....there are LOTS of errors but my son loves his quilt.