I have never pinned a binding except when I do the mitered corners. Are you using your walking foot? That's what I use every time and I never miss a stitch. I also square up my quilt layers before I start and "preview" where I'm attaching the binding by starting out with a large stitch. If I like the way the binding will fold over and cover the edges, I go back over those first 6-7 inches and stitch with a regular size stitch too. And then I'm off and running. Biggest problem is getting the beginning and end of the binding to nicely cooperate into a smooth finish. We all have something we need to improve on, trust me. It will get better.