I bought a Curve Master foot a few months ago and put it aside and haven't used it yet. Now I'm worried. I guess I will quit worrying until I need it for my BOM when we do curve piecing and watch YouTube videos like crazy. I was able to do curve piecing fine by pining it, but after watching the Curve Master foot demo, I had to have it. Now, I may be stuck with a useless foot. Oh well, I should have tried it when I received it. My own fault.