Oh, one more thing.
On the show, when players sit out, the players who don't participate in a given challenge are decided before the challenge starts. They don't get to even practice or attempt the challenge.
They have to strategically select the players they think will do the worst in the challenge.
Whereas here, you're letting the entire tribe attempt any given challenge, and then decide after the fact to drop the scores of the players who did the worst/failed to show up.
So basically, the larger tribe is given way more chances at putting up good scores.
--
http://i55.tinypic.com/25p4htf.jpg
Mer