If it works for you that is all that counts. Both of my machines have a cone holder and spool does not move. They have a wire thing that elevates up and holds the thread as it unwinds. I have a Juki TL98QE and a Baby Lock Jane, both straight stitch machines. I haven't used cones yet but, I have thought they would be more cost effective then the spools. I have so much thread it will be several years before I need any.