I would like to put this idea to you to see if its worth considering.
We have the holding contest as normal and the model who holds it the longest wins. Now what do you think if we introduced at the begining of the contest where each model writes down the time they think the other model would be able to hold on for without each of them knowing what had been written.
The winner of the contest wins the money as she would normally do, but if the model that lost had wrote down the correct time or there abouts of the model that won then she would have to split the winnings with her.
SM
