Hmmm....well it has been cleaned and oiled. My explanation probably wasn't clear. The machine runs fine on straight stitch. I can stitch at a slower speed, medium and fast. But I guess with free motion quilting and I need to go even slower and at a steady pace, and the fine speed control is just not there. I really thought the electronic controller would solve that problem. However, the differences I see with it is that it's easier to hold the speed once you get where you want to be, and the machine stops on a dime. Perhaps I'm trying to teach an old dog new tricks (both of us ;-) and we just can't do it together.