I had a completely brilliant & witty response ready to send and my computer went on the fritz. After resets, etc. the keyboard died & I have to get a new one since just a few weeks ago I took all the old computer stuff, inc. keyboards, to Best Buy for recycling. Once again I'm reminded that I should never get rid of anything. Anyway, I love those little springy things. I'm going to look for a darning foot that attaches just like the regular foot I have for the Green Godzilla Greyhound but is a circle. I have modified my hopping foot for my Elna so it doesn't hop, just glides over the fabric and I like it better than the hopping although I can quilt either way. Here's a video by Leah Day on it:
http://youtu.be/APD6s7PwoqU You all have so much cool stuff!!!