I've given alot of thought to creating a headless tuning system over the years. My first designs were almost all straight pull affairs like the ABM single string bridges or the classic Steinberger design. While that system works well I've never gotten past the bulk of it or the idea that you really need the system to be mounted so far back on the guitar. The system itself influences the guitar design too much for my tastes. There are enough limitations on guitar design already so in my head at least I couldn't go that route, I knew deep down that I needed to create something from scratch. It came to me as I was sketching out my first draft of the single cut headless 8 string guitar. Why not use a rocking lever under the bridge? It is out of the way and light weight. It is easy to use and utilizes a minimal amount of parts. We're talking "crowbar" technology here, literally. I immediately constructed a crude prototype and was surprised by how well that worked! Like a mad scientist I scribbled down every thought on the design as my head was immediately filled with every conceivable aspect of the system. Some of the immediate concerns were about the optimal shape of the rocker and how much room will it need to smoothly tune the string to pitch. Another troubling thought was about what to use for a knob on the top side of the system. The prototype utilizes a phillips head machine screw and that won't due on a guitar. I though about milling a head that could be adjusted with a guitar pick or having special knurled knobs made for the system. As of today the jury's still out on the adjuster knobs. Here are some pics of the first prototype that I frantically cobbled together seconds after the initial idea had hit me. As you can see from the last pic I was using a gallon jug of glue to simulate string tension. The next prototype will be tested in a more natural way with a mock string clamp and a string scale of around 27". Here is the sketch of the guitar design based on my SC model. I have since made a second version with a slightly smaller body as well.