I would double check on the separate ressie. I have read several times, that if you stay at the same resort in the same size unit, it will still count as the same reservation. Another thing to consider, especially for the smaller resorts, is that if you do move for the sake of the dining plan, your room may not be ready until late afternoon and that could impact your day.
Also, we need to think like the dues paying members that we are. If everyone moves, just to save money on the Dining Plan, what are we really saving, if our administration and housekeeping costs increase because of it?

We are not guests, we are members and all costs are passed along to us, so we really need to be more cautious of what we advise, especially on a public forum. Please dont take this as a flame, because it is not, just another pov.