We are 2 families of 5 heading to Disney January 2014. We plan on staying for 12 nights with 10 day park passes. We are looking at booking 3 connecting rooms at POP but am wondering about doing a split stay between POP and POR. How does this work? Do we just pay the difference in room price or do we have to book a 6 day ticket for Pop and a 4 day ticket for POR? Anything else I'm missing?