[Anguirel]

An interesting question, Folwren...

My answer is that the Lords of Umbar are despots, and Sangalazin in particular doesn't go for the fraternising with sailors democratic bilge. If he wants nice spacious quarters with frescoes, he will have them, and he doesn't care if the Corsairs are sleeping nineteen to a bunk as a result. As for the slaves...animals, my dear...

This means that in my view the Corsair vessel doesn't have to be that much larger than yours. It's just that the space allocation is rather lopsided...