My DH threads mine for me. It drives me nuts. You need twizzers and alot of good light. I have a Bermette made for Bernina Fun Lock 006D. it is an older 4 thread serger I bought at a good price from a friend who did not use it anymore. It helps me out alot. I do dumb things like get the blind for the window cord tangled in the thread or push all the thread things down and forget to put them up when I use it. I don't know way they are so hard to thread, I have to turn it upside down to see what I am doing and the book diagrams are so little. What a mess. They have new sergers that thread themselves. They are about 7 or 8 grand.