[Wynton]

I voted for split into the 2 levels, though I actually prefer splitting into the precise levels. My fear, though, is that it'll be too hard for you to make sure 5/10 players only review and get reviewed by other 5/10 players, etc.

There are good and bad players at all levels. And I'm sure I can learn from everyone. But frankly, I'd much rather be do this with people who are playing pretty similar levels.