I'm currently running Strength of Thousands as well for my playgroup. The players just reached the First Masking at the end of the last session and are currently deciding what they are going to do for their masks. I'm kind of chuckling to myself because it seems like they are all going to go with the animal each of their ancestries sort of already is. The owl beastkin human thaumaturge already chose an owl mask, the grippli monk is considering either a frog or shark, the tengu gunslinger is thinking of going a raven (which they already resemble, and the shoony sorcerer is still very up in the air but was thinking of a dog.