FlowerPower and CTGirl: Again you're welcome. My pleasure!

"First of all, Ben is ALL over the promos."

Yes Ben is all over the promos and press images but person in the most press images is Cole.

"Looking at the challenge above, I would bet money on JP or Devon winning, isn't Devon a surfer?"

Yes Devon is a surf instructor.

"Jessica or Ashley would be my bet to win for the women."

This challenge was taken from last year's Australian Survivor Final 12 Immunity Challenge called "Centrifuge".

It is the same except US Survivor added the balance beam in Australian Survivor they were standing on flat ground and those with good arm strength lasted the longest.

Females were the first ones out starting with oldest then the thin model type. Here is the order they went out

12th Sue (59 Personal Trainer and Retired Customs Officer )
11th Flick (23 Personal Assistant and Bartender )
10th Jennah-Louise (27 Law Graduate)
9th Brooke (23 Sales Executive)
8th Kate (28 Financial Analyst)
7th Kylie (38 Firefighter)
6th Nick (28 HS Teacher)
5th Matt (29 Magician and Mentalist)
4th Kristie (24 Senior Account Executive)
3rd Sam (28 Charity Co-Founder and CEO)
2nd Lee (40 Aerial Photographer and Ex Pro Cricketer )
1st El (33 Army Corporal and Charity Worker)

Note: Lee & El were aligned so I don't know if Lee just let El win or not.

"FP, you name both men and women as winners but I don't see two necklaces anywhere"

Unfortunately the Immunity Necklace or Necklaces is covered and then we don't get a good view of it anywhere so I can't tell if there is 1 or 2 Necklaces. There are 7 Men and 5 Women. Would they do a separate Immunity for men and women where the women only have to compete against 4 other women? Has it been even numbers in the past when they had 2 Necklaces?