I have a brother cs6000i and have been FMQ on a very large quilt without issues. I changed the top thread to a different color and now the tension is all messed up....eyelashing and most of the bottom thread is just laying on the surface. I've tried adjusting the tension to accomodate a different thread, but no luck. I know the tension needs adjustment but after poring over the owners manual, I still can't decide how to adjust. Does the adjustment dial with numbers from 1-9 adjust the tension on the top thread or the bottom? Does the tension increase with a higher number? I am so confused right now and really don't want to rip out any more bad areas. HELP!!!