Whoa, this is really tight! One pass through to clean up some of the language around how to build your dice pools and this would be a totally playable game. Heck, I'd bust it out as a game to play while waiting in line somewhere.
You know, it's just some looseness around building that die pool, but I'm looking at the most recent edition and either you cleaned that up, or it's not jumping out at me any more.
I confess I like the visceral quality of building dice pools and then throwing big handfuls of them.