I have heard from others that pulling the thread back from the needle to the spool is not good, causes lint...I once had it get jammed inside the apparatus of upper tension stuff somewhere in the thread path, and a piece of thread got stuck in there; I knew it because I had to yank it out through the needle end. I started having random tension issues and brought it to my dealer whose tech found multiple bits of thread
so I try not to do it any more.
