I saw this tip here recently and tried it yesterday and was very happy with the results. I was joining two halves of a large quilt together so there were many seams and many many points to match, always a nightmare for me. After I pinned the pieces together, I sewed just a few stitches on either side of the seam or point, cut the thread and moved to the next seam. Did this all across the quilt. All my points were very accurate, and if one is off a little bit, you only have to take out a few stitches and re sew it. Then I went back and joined the pieces between the seams. I think when sewing a long seam (i.e. when joining two halves of a quilt together) the fabric shifts and no matter how carefully you pin, it is hard to get a perfect match. This method made all my points perfect and made me very happy.