So now we get 10 extra question votes. But the way this is implemented is… bizarre. After casting 30 votes, we may cast 10 more votes on questions, regardless of what we voted on before.
I generally vote on a question and any answer it already has (if they deserve votes, of course) when I first view a page, and vote on new answers if I visit the page again later. So I tend to vote on questions a little before answers. After 30 votes, I can no longer maintain my voting habits, and the extra votes don't do me any good. (I frequently reach the cap on Unix.SE, where I'm very active.)
Please don't make a difference between voting on 10 questions first and then 30 other posts, and voting on 30 posts first and then 10 questions. (Yes, this means the figures may need to be adjusted.)
Or, maybe I'm voting on questions too much? I don't think I can see my voting statistics, but I have the Electorate badge on SO with 1961 votes, which is probably about 30–35% on questions.