Does anyone else have problems with King Tut thread? I have four spools of it, I have tried to use it in my Janome, and my Pfaff and I cannot get it to work. It makes loops on the top fabric, bird nests on the bottom, I dont know what I am doing wrong with it. I have it in the bobbin and top, should I use it just for the top thread? Does my needle size matter? Is there a secret? Please help.