Well, there are as many answers as there are quilters. I use my walking foot for any quilting that I do. I haven't been successful doing the free motion quilting (which uses the darning foot). To do curves, I just go slowly and turn my work as needed. You should try using different ways and decide which one gives you the desired results. There are no hard and fast rules. Besides, quilters are known for breaking the rules! Good luck and have fun!!