The lopsidedness in tribe numbers between Ulong and Koror could create an interesting anomaly.
Every tribe has some members who are weaker and who are less likely to be helpful during challenges. These are the people who are usually in the rotation for sitting out challenges when their tribe has a numbers advantage.
But, in the case of Koror, their numbers are so lopsided that they are forced to sit out several tribe members during challenges. And, since they cannot sit out the same people in back-to-back challenges, it means that they may have to start sitting out their stronger players. Obviously, this is something that a tribe normally wouldn't do.
If the tribes do not merge soon and if Koror keeps winning immunity, it could become an issue. They may even get to a point where they have such a numbers advantage that it becomes impossible for them to sit the same people out in back-to-back challenges. (That would happen if Ulong had less than half of the tribe members that Koror has).
Does anyone know what, if any, contingency plans producers have if (because of lopsided tribal numbers and the "sit-out" rule):
a) a tribe is forced to sit out strong players from challenges, and
b) it becomes impossible for a tribe to sit out different people in back-to-back challenges.
I do not recall this being a big issue in Marquesas where Maraamu lost the first four IC's. When Rotu had a four-person advantage over Maraamu, the RC involved a tribe member directing his blindfolded tribemates to find pieces of a tiki tower, then assembling them once the pieces are all retrieved. The IC had the tribes building a distress signal for a passing boat. At this point, Rotu had eight members while Maraamu had four. Can anyone remember if Rotu had to sit out the four they used for the RC for the IC? Or was the distress signal challenge a "tribal" thing where everyone got to work on it?