Biggest Loser

I'm facilitating a Biggest Loser Club for NACCers. $10 gets you in, biggest loser takes all (% of weight lost, not pounds. And your actual weight will not be displayed anywhere except in my inbox. %'s are fair game though). Initial weigh in will be by Tuesday, and the final weigh in will co-inside with the Biggest Loser finale in May. Anyone in?