Planar Surface question and suggestion

I have been testing the "Planar Surface Component".  If the surface proves to be planar, it is obvious the plane output is the plane containing the surface analyzed.  However, if the surface proves to be non-planer an output plane is still output.  I am trying to determine what plane is output from the Planer Surface command when the surface tested is NOT Planar. 

I might also suggest another helpful plane output when the surface proves non-planer.  It would be helpful to output a plane similar to the "Fit Plane Component" ...where the plane output for NON-planer surfaces would return a plane that minimizes the maximum deviation from the surface.

Stan