I don't think that adding a 4th MDR would make them any less cramped. I would think they would have about the same overall space dedicated to the 4 MDRs, and they would have less people, but would also be smaller.This is one I have to agree 100% with. One of the reasons why I don't like the MDR's and try to book Remy and Palo as much as possible is because of how cramped and how loud the MDR's can be. A 4th option would be something I would welcome.