And the cool thing with this design is if you don't want the tuner, then just loosen it and slide it off.
What I would like to see is some positive detents for each tuner position, so you can lock and move the tuner through the positions without having to use set screws or any tools.
I personally hate set screws. And a tool-less method of moving a tuner between positions would be a better mouse trap than all the current solutions.