I also used it on one of my quilts after seeing him teach it on his dvd. (In his dvd he also uses piping and it's really is beautiful). One corner came out great, the others not so good. I don't think the quilt was perfectly square, so that probably led to the problems I had. I think the technique is great, but you're right, it takes a bit of manipulation and practice. I'm going to try it again... after I make sure my quilt is square!