A personal trainer I know has seen people use this before and some of the weight loss 'boot camps' in australia swear by this site apparently. There was one lady she knows who once won $1000 for her comp. So it's possible apparently. Not sure with this one being it's such a big competition and so many people involved. But I guess it's a pretty fair bet that at least 50% of us won't make the 4% so if nothing else you may get close to doubling your money. Better than nothing! LOL