To see how the new vote pools function, I did all my voting at once over the past half-hour or so. I voted for both questions and answers. Now I'm getting a message to come back and vote on more answers in 19 hours or use my 9 remaining question votes now.
So it looks like you first use up your pool of 30 all-purpose votes, THEN you have 10 additional votes that can only be for questions. Is that correct?
If so, it seems like a bad way to do it.
I think it should be that you have a total of 40 votes, which can be cast in any order you wish, but at least 10 of them have to be on questions. Or, to think of it another way, you start with 30 votes, each of the first 10 question votes you make adds one to the number of votes you're allowed.
Treating it as two pools, and the first pool has to be used up before you get to use the second pool is totally unnatural. It means that after you've used up the all-purpose votes, you then have to go back and scan for MORE questions that might be worth voting up. Or you have to first make a point of only voting for answers and then come back and vote up the questions you liked. Either way, you can't use the new votes in a natural way as you're reading questions and answers.
As I said, I definitely voted on several questions as well as answers, so I'm pretty sure the pools work as described (did I miss something?), and I think that's NOT the way they should work.
Added: Another (minor) problem with the implementation of the new voting pools is that you don't get the 5 votes left messages on the all-purpose votes, only the answer votes. Since the pools are being treated differently, shouldn't you get the warnings on the first 30 votes.