Pre-forming binding before gluing makes life easier when you come to those sharp bends. You could just tape the binding in place on the actual body, but that wastes tape and still doesnt hold as tight as you'd like.
With this jig you just press the binding into the slot to get a perfect fit. You can still use a hair dryer or heat gun for tight curves. The slot is milled to accept up to 0.09" thick binding.
Available in other body styles, email for details.