As far as I could tell the @INHERIT binding does not work with checkbox tv’s. Also the check box becomes un-editable by quickedit.
Now I think that the problem is not really with @INHERIT but more like a conception issue. By nature a checkbox can only have one value and that value is either selected or not. By using a default value or an @INHERIT value it is effectively rendering the box always on. The @INHERIT binding should work on a selected or not selected basis rather than a value basis for check boxes.
Or did I get something wrong in my thinking?