I have been receiving the Superior Threads Newsletter for years and just joined the Superior University Thread of the Month club. One of the items that came with my first month's things was a fabulous DVD that explains ALL the threads, how they are made, and what setting to use on the tension dial (any machine) and which needle to use. I'm sold. I've been happy with any of the Superior threads I have used in the past for FMS and now I know why. I also like Aurifil and Bottom Line.....I particularly like Bottom Line for the bobbin. I, too, have the "blue dot" bobbin and think it helps me with my FMQ. I do most of it on my Janome 6600 like another quilter here on this board.....I also have a bunch of the Connecting Threads thread, but it is linty so I only use it when I need special colors.....it works fine, just linty....