I just know people will scream in horror when they hear that the pansy quilt that I just finished was quilted in invisible thread. I don't know where I got the thread, but it worked just fine in my machine. Just loosen the tension a little and back stitch a little to lock your stitches and away you go! I had so many different colored flowers in each block, that it would not have been possible to do it any other way. sometimes I just barely caught a petal or a piece of the basket, I am not a very careful sewer, but with anything else, I would have had to rip, and I was on a tight deadline. With the invisible thread, it never even showed. Unless it was a major goof, no ripping happened. My aunt loved it and no one else's opinion really mattered but hers since it was her gift.