MouseFan is exactly right. You should absolutely book all possible passengers at the same time. It's much easier to remove a person later than it is to add a person. Sometimes even if the ship is not at capacity, the lifeboats in your category's muster station ARE at capacity, so they cannot add any more people to a room that reports to that muster station. It makes perfect sense, although most people never think of it that way until it's explained to them. Normally, you'd think that as long as the ship isn't full, you could just add a person, since you're not taking up an extra room. But nooooooo. . .
