One for appraisal.

[joe_oppenheimer]

The friendly unit could be ANY NUMBER of hexes away from the "edge" of the hill mass and still see. yes?
 

NO.

See 8.42

8.42LOS is BLOCKED if both the spotting and target hex are on DIFFERENT elevations, and:

• one or more slope hexes of higher elevation than the higher unit lies between the two hexes;
  
• one or more slope hexes of the same elevation as the higher unit lies between the two hexes and the slope hex is closer (not equidistant) to the lower unit than the higher one;
  
• a limiting terrain hex that blocks LOS (for example, town or woods), that is higher elevation than the higher unit, lies between the two hexes;
  
• a limiting terrain hex that blocks LOS (for example, town　or woods), of the same elevation as the higher unit, lies　between the two hexes and the limiting terrain hex is closer　(not equidistant) to the lower unit than the higher one.