"No Blue Skies" Original Title

The haul of early Five-O scripts I got recently in pdf format from Script City included a title that was unfamiliar to me, "Tread Softly, Iceman." Just got it today and after reading a page discovered this was the original title for "No Blue Skies." It's dated July 18, 1968 long before the airdate. Since Five-O established itself from the beginning as a show that would give the audience the episode title, it obviously mattered more to decide what an episode title should be as opposed to those shows that would never show the episode title.