I only pin when I start attaching the binding on the right side. After that, I hand guide the binding and quilt together. A walking foot helps, but it can be done without one. I don't pin the binding to the back to hand sew it on. A great quilter, teacher (and fab friend) suggested that if I press the binding away from the body of the quilt after it is attached, it will be easy to just hand roll it over to the back and stitch. It really does work, so far I haven't had to pin a binding to hand sew it. I'm sure that all the methods work for each individual, sew go to what makes you comfortable.
