Not to belabor the point unnecessarily- but now that the dust has cleared (and my brain as well), I am realizing that if I had only CLOSED the clamp while making adjustments, the handle of the clamp never would have reached the back of the needle case and pushed it off the rail. That would have saved me a bunch of work! Sincerely, David & Lisa O'Connor O'Connor & Co. Custom Embroidery Westerville, OH