To address the Number Of Castes thing... Honestly? The number of Exaltations and the number of available Castes struck me as being "As many as needed for the story". I mean, Vance's thing about "I dislike the idea of there not being enough of a certain caste" is, with all due respect to the man because I have nothing but the highest respect for him, is like worrying about getting struck by lightning on the day you win the lottery.
No announcement yet.
Do Exaltations change caste between incarnations