You can see Michael´s Secundus in action here :-
https://drive.google.com/file/d/0BxOswLxf3SaKZ09lWE5sZWRZcUk/view?usp=sharing
You can see Michael´s Secundus in action here :-
https://drive.google.com/file/d/0BxOswLxf3SaKZ09lWE5sZWRZcUk/view?usp=sharing