That would be great! No lower limit, but I'd obviously prefer to see users with ~400 SP, as the "push" period is limited to 14 days. I figured that we would have the most impact going with ~400 SP people... But I don't want to exclude anyone, so if we have some super-awesome people with less SP than that, I'm all for it.

The more SP they have, the easier it would be to push them.