have I ever encountered a KNOT in the YLI quilting thread I was using.....until a few minutes ago. I was merrily quilting along when my machine started making awful noises. I thought I had broken the walking foot or something. I'm looking around to see what the problem was when I noticed a KNOT keeping the thread from going through the needle. I was SHOCKED to say the least :!: :? Here is a pic of the thread I cut off the spool. Hope it shows. Should I write them a letter or e-mail them?