548s are the most atypical 5s. The most 4ish of the 5s.
5-8-4: Most Intense Five. Needs creativity. Can be moody and melancholy.
five with an eight fix: least intellectual, though perhaps the most mentally intense. unsettled by occasional fits of temper, sudden outbursts. affixed to notions of power; attitude of resigned realist. quietly guarded and insistent, may put others ill at ease.
five with a one fix: focused, serious tone. critical outlook. theme of
sacrifice, dissolves wholly into their projects.
special interest in knowledge, skill, and discoveries
to improve health, society, the future, and the like.
concerned for others in the abstract; difficult to get
close to.
Nietzche is a 548 btw.