Global Mapper v25.0

Intensity Value Differs greatly from Elevation Values

I am curious if I am reading something wrong, or doing something wrong.  I have an las file with correct elevations.  When I create an elevation grid and use Elevation values, Everything looks great 

But when I run the exact same setup (Grid Method: Binning: Ave, Autospacing of 5) but change Grid Method from Elevation Values to Intensity Values by scale gets way out of wack

Is the scale bar reading something else (Like intensity level).  What would I have to do to get it to read and export the correct values(Same as elevation)?