I posted today a quilt I made for my friend's Grand son. She got all the materials including the thread, and she got red Mettler thread, #600. At some point the thread started to break, which is kind of unusual for Mettler. I opened the machine to clean it and make sure that nothing was caught. I was very surprised to find so much lint. My whole machine was red inside. There was lint everywhere. I cleaned it and the breakage stopped. I used Mettler a while ago and don't remember it being so linty. Has anyone else experience this recently? I now know which thread I will not used again.