I'm just off the Reflection on one of these 3-night ones B2B with a 5-night one. Definitely more kids on board. Our 5-nighter was the one that went to Coco Cay. What was interesting to me was that Coco Cay seemed to absorb the passengers well, it didn't feel at all crowded. We were there with one of the large RCI ships. Apparently they have two big RCI ships there sometimes.