You could do hosting by having each site manage one topic at a time. EvC could host a science topic while the other a bible topic. Could even be switched.
Rules should include an agreement not to ban the selected participants and not to delete any posts. The content of the threads should belong to both sites, with explicit permission to reproduce their contents in full at the other site.
The only way to do scoring in my mind is if someone wanted to hunt down a focus group who are legitimatly on the fence and poll them before and after.
I have 8 weeks of summer left and would love to participate!
BUT if objects for gratitude and admiration are our desire, do they not present themselves every hour to our eyes? Do we not see a fair creation prepared to receive us the instant we are born --a world furnished to our hands, that cost us nothing? Is it we that light up the sun; that pour down the rain; and fill the earth with abundance? Whether we sleep or wake, the vast machinery of the universe still goes on. Are these things, and the blessings they indicate in future, nothing to, us? Can our gross feelings be excited by no other subjects than tragedy and suicide? Or is the gloomy pride of man become so intolerable, that nothing can flatter it but a sacrifice of the Creator? --Thomas Paine