I use these very often. I don't, however, take a tiny stitch on each end of the original loop of thread. I come out of the fabric at the beginning and in on the other side, then carry the thread across the back and out again at the beginning. I take 2 or three stitches then finish as above. This makes a nice, strong loop. Sometimes I even reinforce the back if the loop will get much pulling - like above a zipper.