If your feed dogs are up, you need to set your stitch length to "zero", if they're down, it doesn't matter. It takes lots of practice to get the hang of FMQ. Your machine speed vs the speed you move your project with your hands determines the even-ness of your stitches. You also need to use a darning foot or FMQ foot and the presser foot lever needs to be down. As stated before, PRACTICE, PRACTICE, PRACTICE!!! Try using gripper gloves, keep the weight of your quilt on a side table. You can also go to YouTube and see video tutorials. PRACTICE, PRACTICE, PRACTICE!!!