3) This might have been specified in the books, I don't remember, but does Duralumin expend itself as well as the metal it's used with? If it does, I've got this theory that its effect is actually just to cause a regular flare, not a superflare, but it affects itself in a feedback loop that keeps forcing the flare higher until it runs out.
BRANDON SADERSON
So, I've said before that I want to hold off on talking about different forms of compounding and types of twinborn until I can address them in the series. So I'll have to RAFO the first two. However, in answer to the third one, yes you DO expend Duralumin in the process.
This was the question I was thinking of, I was wrong