Good points! The COS Project is doing precisely what you are thinking.
Please sign up:
http://www.conventionofstates.com/create_your_account
Thanks for the link. After looking at the site I'm afraid their strategy is exactly what I think is doomed to fail. I don't see how a convention called to address such a broad topic as reining in federal power could ever reach the needed consensus on the details.
You would have 50 delegations and who knows how many individual representatives, each with their own conception of what specific actions we need to take.
I think it's important to early on be more specific rather than less so the decisions that actually have to be made in the convention are manageable.