By jove, I think you've done it. You've gone and figured out the Democrat's strategery. Keep moving, keep dodging, keep Rove and Bush on the ropes.
In that case, an early test of whether I'm right will be to see how long delegates to the DNC in Boston plan to stay. If they've all booked rooms through early November we'll know it'll be a long and seesawing nomination process. :)