It's funny. I am all things Bonnie, but I don't use her leader/ enders. I make her l/e quilts or projects, but - I don't need to use them. The machines I use do not get upset with starting a seam, I've had several that do, but not right now. I also sew with a Juki f-600 that doesn't need them. I sew in long strips, not individually most of the time, but when I need to start from scratch my machines just do it. Am I the only quilter who locks her seams? After many repairs on quilts I had put together and were starting to open up, I got fed up and just lock stitch when I start.